diff --git a/plugins/groovy/testdata/highlighting/DelegatedMethodIsImplemented.groovy b/plugins/groovy/testdata/highlighting/DelegatedMethodIsImplemented.groovy
index de75449efb25..4969ff2a5a66 100644
--- a/plugins/groovy/testdata/highlighting/DelegatedMethodIsImplemented.groovy
+++ b/plugins/groovy/testdata/highlighting/DelegatedMethodIsImplemented.groovy
@@ -7,5 +7,5 @@ class A {
 }
 
 <error descr="Method 'foo' is not implemented">class Y implements X</error>{
-  def foo(X<?> x){}
+  def foo(X<String> x){}
 }
\ No newline at end of file