diff --git a/implementation/jwt-build/src/main/java/io/smallrye/jwt/build/impl/JwtClaimsBuilderImpl.java b/implementation/jwt-build/src/main/java/io/smallrye/jwt/build/impl/JwtClaimsBuilderImpl.java
index 86e73534..3ce42b99 100644
--- a/implementation/jwt-build/src/main/java/io/smallrye/jwt/build/impl/JwtClaimsBuilderImpl.java
+++ b/implementation/jwt-build/src/main/java/io/smallrye/jwt/build/impl/JwtClaimsBuilderImpl.java
@@ -215,7 +215,7 @@ public JwtSignatureBuilder header(String name, Object value) {
      */
     @Override
     public JwtSignatureBuilder algorithm(SignatureAlgorithm algorithm) {
-        headers.put(HeaderParameterNames.ALGORITHM, algorithm.name());
+        headers.put(HeaderParameterNames.ALGORITHM, algorithm.getAlgorithm());
         return this;
     }