diff --git a/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/gossip/topics/Eth2GossipTopicFilterTest.java b/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/gossip/topics/Eth2GossipTopicFilterTest.java
index 9001d589914..3b275ee7595 100644
--- a/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/gossip/topics/Eth2GossipTopicFilterTest.java
+++ b/networking/eth2/src/test/java/tech/pegasys/teku/networking/eth2/gossip/topics/Eth2GossipTopicFilterTest.java
@@ -37,7 +37,6 @@
 import tech.pegasys.teku.spec.TestSpecInvocationContextProvider;
 import tech.pegasys.teku.spec.config.SpecConfig;
 import tech.pegasys.teku.spec.config.SpecConfigDeneb;
-import tech.pegasys.teku.spec.config.SpecConfigElectra;
 import tech.pegasys.teku.spec.datastructures.state.Fork;
 import tech.pegasys.teku.spec.datastructures.state.ForkInfo;
 import tech.pegasys.teku.spec.util.DataStructureUtil;
@@ -140,7 +139,8 @@ void shouldConsiderAllBlobSidecarSubnetsRelevant() {
 
   @TestTemplate
   void shouldNotConsiderBlobSidecarWithIncorrectSubnetIdRelevant() {
-    final int blobSidecarSubnetCount = getBlobSidecarSubnetCount();
+    final int blobSidecarSubnetCount =
+        spec.forMilestone(specMilestone).miscHelpers().getBlobSidecarSubnetCount().orElseThrow();
     assertThat(
             filter.isRelevantTopic(
                 getTopicName(getBlobSidecarSubnetTopicName(blobSidecarSubnetCount + 1))))
@@ -160,14 +160,6 @@ void shouldNotAllowTopicsWithUnknownForkDigest() {
     assertThat(filter.isRelevantTopic(irrelevantTopic)).isFalse();
   }
 
-  private int getBlobSidecarSubnetCount() {
-    return specMilestone.isGreaterThanOrEqualTo(SpecMilestone.ELECTRA)
-        ? SpecConfigElectra.required(spec.forMilestone(SpecMilestone.ELECTRA).getConfig())
-            .getBlobSidecarSubnetCountElectra()
-        : SpecConfigDeneb.required(spec.forMilestone(SpecMilestone.DENEB).getConfig())
-            .getBlobSidecarSubnetCount();
-  }
-
   private String getTopicName(final GossipTopicName name) {
     return GossipTopics.getTopic(forkInfo.getForkDigest(spec), name, SSZ_SNAPPY);
   }