diff --git a/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRangeListenerValidatingProxyTest.java b/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRangeListenerValidatingProxyTest.java
index 7ac8775afcd..bcbe3297723 100644
--- a/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRangeListenerValidatingProxyTest.java
+++ b/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRangeListenerValidatingProxyTest.java
@@ -22,8 +22,8 @@
 import static tech.pegasys.teku.infrastructure.async.SafeFutureAssert.safeJoin;
 import static tech.pegasys.teku.infrastructure.unsigned.UInt64.ONE;
 import static tech.pegasys.teku.infrastructure.unsigned.UInt64.ZERO;
+import static tech.pegasys.teku.networking.eth2.rpc.beaconchain.methods.BlobSidecarsByRootValidatorTest.breakInclusionProof;
 
-import java.util.stream.IntStream;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import tech.pegasys.teku.infrastructure.async.SafeFuture;
@@ -35,7 +35,6 @@
 import tech.pegasys.teku.spec.TestSpecFactory;
 import tech.pegasys.teku.spec.datastructures.blobs.versions.deneb.BlobSidecar;
 import tech.pegasys.teku.spec.datastructures.blocks.SignedBeaconBlock;
-import tech.pegasys.teku.spec.schemas.SchemaDefinitionsDeneb;
 import tech.pegasys.teku.spec.util.DataStructureUtil;
 
 @SuppressWarnings("JavaCase")
@@ -91,29 +90,7 @@ void blobSidecarFailsInclusionProofVerification() {
     final BlobSidecar blobSidecar1_0 =
         dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(
             dataStructureUtil.randomSignedBeaconBlock(ONE), 0);
-    final BlobSidecar blobSidecar1_0_modified =
-        SchemaDefinitionsDeneb.required(spec.getGenesisSchemaDefinitions())
-            .getBlobSidecarSchema()
-            .create(
-                blobSidecar1_0.getIndex(),
-                blobSidecar1_0.getBlob(),
-                blobSidecar1_0.getKZGCommitment(),
-                blobSidecar1_0.getKZGProof(),
-                blobSidecar1_0.getSignedBeaconBlockHeader(),
-                IntStream.range(0, blobSidecar1_0.getKzgCommitmentInclusionProof().size())
-                    .mapToObj(
-                        index -> {
-                          if (index == 0) {
-                            return blobSidecar1_0
-                                .getKzgCommitmentInclusionProof()
-                                .get(index)
-                                .get()
-                                .not();
-                          } else {
-                            return blobSidecar1_0.getKzgCommitmentInclusionProof().get(index).get();
-                          }
-                        })
-                    .toList());
+    final BlobSidecar blobSidecar1_0_modified = breakInclusionProof(spec, blobSidecar1_0);
 
     final SafeFuture<?> result = listenerWrapper.onResponse(blobSidecar1_0_modified);
     assertThat(result).isCompletedExceptionally();
diff --git a/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRootListenerValidatingProxyTest.java b/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRootListenerValidatingProxyTest.java
index 679cb76387c..cfabe5c4a3a 100644
--- a/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRootListenerValidatingProxyTest.java
+++ b/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRootListenerValidatingProxyTest.java
@@ -19,6 +19,7 @@
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
+import static tech.pegasys.teku.networking.eth2.rpc.beaconchain.methods.BlobSidecarsByRootValidatorTest.breakInclusionProof;
 
 import java.util.List;
 import org.junit.jupiter.api.BeforeEach;
@@ -69,11 +70,16 @@ void blobSidecarsAreCorrect() {
     listenerWrapper =
         new BlobSidecarsByRootListenerValidatingProxy(peer, spec, listener, kzg, blobIdentifiers);
 
-    final BlobSidecar blobSidecar1_0 = dataStructureUtil.randomBlobSidecarForBlock(block1, 0);
-    final BlobSidecar blobSidecar1_1 = dataStructureUtil.randomBlobSidecarForBlock(block1, 1);
-    final BlobSidecar blobSidecar2_0 = dataStructureUtil.randomBlobSidecarForBlock(block2, 0);
-    final BlobSidecar blobSidecar3_0 = dataStructureUtil.randomBlobSidecarForBlock(block3, 0);
-    final BlobSidecar blobSidecar4_0 = dataStructureUtil.randomBlobSidecarForBlock(block4, 0);
+    final BlobSidecar blobSidecar1_0 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block1, 0);
+    final BlobSidecar blobSidecar1_1 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block1, 1);
+    final BlobSidecar blobSidecar2_0 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block2, 0);
+    final BlobSidecar blobSidecar3_0 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block3, 0);
+    final BlobSidecar blobSidecar4_0 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block4, 0);
 
     assertDoesNotThrow(() -> listenerWrapper.onResponse(blobSidecar1_0).join());
     assertDoesNotThrow(() -> listenerWrapper.onResponse(blobSidecar1_1).join());
@@ -93,9 +99,12 @@ void blobSidecarIdentifierNotRequested() {
     listenerWrapper =
         new BlobSidecarsByRootListenerValidatingProxy(peer, spec, listener, kzg, blobIdentifiers);
 
-    final BlobSidecar blobSidecar1_0 = dataStructureUtil.randomBlobSidecarForBlock(block1, 0);
-    final BlobSidecar blobSidecar1_1 = dataStructureUtil.randomBlobSidecarForBlock(block1, 1);
-    final BlobSidecar blobSidecar2_0 = dataStructureUtil.randomBlobSidecarForBlock(block2, 0);
+    final BlobSidecar blobSidecar1_0 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block1, 0);
+    final BlobSidecar blobSidecar1_1 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block1, 1);
+    final BlobSidecar blobSidecar2_0 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block2, 0);
 
     assertDoesNotThrow(() -> listenerWrapper.onResponse(blobSidecar1_0).join());
     assertDoesNotThrow(() -> listenerWrapper.onResponse(blobSidecar1_1).join());
@@ -119,7 +128,8 @@ void blobSidecarFailsKzgVerification() {
         new BlobSidecarsByRootListenerValidatingProxy(
             peer, spec, listener, kzg, List.of(blobIdentifier));
 
-    final BlobSidecar blobSidecar1_0 = dataStructureUtil.randomBlobSidecarForBlock(block1, 0);
+    final BlobSidecar blobSidecar1_0 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block1, 0);
 
     final SafeFuture<?> result = listenerWrapper.onResponse(blobSidecar1_0);
     assertThat(result).isCompletedExceptionally();
@@ -131,4 +141,27 @@ void blobSidecarFailsKzgVerification() {
                 .BLOB_SIDECAR_KZG_VERIFICATION_FAILED
                 .describe());
   }
+
+  @Test
+  void blobSidecarFailsInclusionProofVerification() {
+    final SignedBeaconBlock block1 = dataStructureUtil.randomSignedBeaconBlock(UInt64.ONE);
+    final BlobIdentifier blobIdentifier = new BlobIdentifier(block1.getRoot(), UInt64.ZERO);
+    listenerWrapper =
+        new BlobSidecarsByRootListenerValidatingProxy(
+            peer, spec, listener, kzg, List.of(blobIdentifier));
+
+    final BlobSidecar blobSidecar1_0 =
+        dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block1, 0);
+    final BlobSidecar blobSidecar1_0_modified = breakInclusionProof(spec, blobSidecar1_0);
+
+    final SafeFuture<?> result = listenerWrapper.onResponse(blobSidecar1_0_modified);
+    assertThat(result).isCompletedExceptionally();
+    assertThatThrownBy(result::get)
+        .hasCauseExactlyInstanceOf(BlobSidecarsResponseInvalidResponseException.class);
+    assertThatThrownBy(result::get)
+        .hasMessageContaining(
+            BlobSidecarsResponseInvalidResponseException.InvalidResponseType
+                .BLOB_SIDECAR_INCLUSION_PROOF_VERIFICATION_FAILED
+                .describe());
+  }
 }
diff --git a/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRootValidatorTest.java b/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRootValidatorTest.java
index d8621cd1473..01548f8f016 100644
--- a/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRootValidatorTest.java
+++ b/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/rpc/beaconchain/methods/BlobSidecarsByRootValidatorTest.java
@@ -47,6 +47,33 @@ void setUp() {
     when(kzg.verifyBlobKzgProof(any(), any(), any())).thenReturn(true);
   }
 
+  public static BlobSidecar breakInclusionProof(final Spec spec, final BlobSidecar blobSidecar) {
+    final BlobSidecar blobSidecarModified =
+        SchemaDefinitionsDeneb.required(spec.getGenesisSchemaDefinitions())
+            .getBlobSidecarSchema()
+            .create(
+                blobSidecar.getIndex(),
+                blobSidecar.getBlob(),
+                blobSidecar.getKZGCommitment(),
+                blobSidecar.getKZGProof(),
+                blobSidecar.getSignedBeaconBlockHeader(),
+                IntStream.range(0, blobSidecar.getKzgCommitmentInclusionProof().size())
+                    .mapToObj(
+                        index -> {
+                          if (index == 0) {
+                            return blobSidecar
+                                .getKzgCommitmentInclusionProof()
+                                .get(index)
+                                .get()
+                                .not();
+                          } else {
+                            return blobSidecar.getKzgCommitmentInclusionProof().get(index).get();
+                          }
+                        })
+                    .toList());
+    return blobSidecarModified;
+  }
+
   @Test
   void blobSidecarIsCorrect() {
     final SignedBeaconBlock block1 = dataStructureUtil.randomSignedBeaconBlock(UInt64.ONE);
@@ -98,29 +125,7 @@ void blobSidecarFailsInclusionProofVerification() {
     final BlobIdentifier blobIdentifier1_0 = new BlobIdentifier(block1.getRoot(), UInt64.ZERO);
     final BlobSidecar blobSidecar1_0 =
         dataStructureUtil.randomBlobSidecarWithValidInclusionProofForBlock(block1, 0);
-    final BlobSidecar blobSidecar1_0_modified =
-        SchemaDefinitionsDeneb.required(spec.getGenesisSchemaDefinitions())
-            .getBlobSidecarSchema()
-            .create(
-                blobSidecar1_0.getIndex(),
-                blobSidecar1_0.getBlob(),
-                blobSidecar1_0.getKZGCommitment(),
-                blobSidecar1_0.getKZGProof(),
-                blobSidecar1_0.getSignedBeaconBlockHeader(),
-                IntStream.range(0, blobSidecar1_0.getKzgCommitmentInclusionProof().size())
-                    .mapToObj(
-                        index -> {
-                          if (index == 0) {
-                            return blobSidecar1_0
-                                .getKzgCommitmentInclusionProof()
-                                .get(index)
-                                .get()
-                                .not();
-                          } else {
-                            return blobSidecar1_0.getKzgCommitmentInclusionProof().get(index).get();
-                          }
-                        })
-                    .toList());
+    final BlobSidecar blobSidecar1_0_modified = breakInclusionProof(spec, blobSidecar1_0);
 
     validator = new BlobSidecarsByRootValidator(peer, spec, kzg, List.of(blobIdentifier1_0));
     assertThatThrownBy(() -> validator.validate(blobSidecar1_0_modified))