diff --git a/hibernate-core/src/main/java/org/hibernate/bytecode/enhance/internal/bytebuddy/EnhancerImpl.java b/hibernate-core/src/main/java/org/hibernate/bytecode/enhance/internal/bytebuddy/EnhancerImpl.java
index 5d4c920507..1162916e94 100644
--- a/hibernate-core/src/main/java/org/hibernate/bytecode/enhance/internal/bytebuddy/EnhancerImpl.java
+++ b/hibernate-core/src/main/java/org/hibernate/bytecode/enhance/internal/bytebuddy/EnhancerImpl.java
@@ -68,7 +68,7 @@ public class EnhancerImpl implements Enhancer {
 	private static final CoreMessageLogger log = CoreLogging.messageLogger( Enhancer.class );
 
 	protected final ByteBuddyEnhancementContext enhancementContext;
-	private ByteBuddyState bytebuddy;
+	private final ByteBuddyState bytebuddy;
 
 	private final TypePool classPool;