diff --git a/extensions/resteasy-classic/resteasy-server-common/deployment/src/main/java/io/quarkus/resteasy/server/common/deployment/ResteasyServerCommonProcessor.java b/extensions/resteasy-classic/resteasy-server-common/deployment/src/main/java/io/quarkus/resteasy/server/common/deployment/ResteasyServerCommonProcessor.java
index f8bc8f674c319..7eb5e8ae332cf 100755
--- a/extensions/resteasy-classic/resteasy-server-common/deployment/src/main/java/io/quarkus/resteasy/server/common/deployment/ResteasyServerCommonProcessor.java
+++ b/extensions/resteasy-classic/resteasy-server-common/deployment/src/main/java/io/quarkus/resteasy/server/common/deployment/ResteasyServerCommonProcessor.java
@@ -693,7 +693,8 @@ public ClassVisitor apply(String className, ClassVisitor classVisitor) {
                                 public void visit(int version, int access, String name, String signature, String superName,
                                         String[] interfaces) {
                                     super.visit(version, access, name, signature, superName, interfaces);
-                                    MethodVisitor ctor = visitMethod(Modifier.PUBLIC, "<init>", "()V", null,
+                                    MethodVisitor ctor = visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNTHETIC, "<init>",
+                                            "()V", null,
                                             null);
                                     ctor.visitCode();
                                     ctor.visitVarInsn(Opcodes.ALOAD, 0);