diff --git a/examples/src/main/java/org/apache/pdfbox/examples/signature/CreateSignatureBase.java b/examples/src/main/java/org/apache/pdfbox/examples/signature/CreateSignatureBase.java
index d4080a1b88a..1c0acb7a55e 100644
--- a/examples/src/main/java/org/apache/pdfbox/examples/signature/CreateSignatureBase.java
+++ b/examples/src/main/java/org/apache/pdfbox/examples/signature/CreateSignatureBase.java
@@ -138,7 +138,7 @@ public byte[] sign(InputStream content) throws IOException
         {
             CMSSignedDataGenerator gen = new CMSSignedDataGenerator();
             X509Certificate cert = (X509Certificate) certificateChain[0];
-            ContentSigner sha1Signer = new JcaContentSignerBuilder("SHA256WithRSA").build(privateKey);
+            ContentSigner sha1Signer = new JcaContentSignerBuilder(cert.getSigAlgName()).build(privateKey);
             gen.addSignerInfoGenerator(new JcaSignerInfoGeneratorBuilder(new JcaDigestCalculatorProviderBuilder().build()).build(sha1Signer, cert));
             gen.addCertificates(new JcaCertStore(Arrays.asList(certificateChain)));
             CMSProcessableInputStream msg = new CMSProcessableInputStream(content);