diff --git a/test/SemaObjC/synthesize-setter-contclass.m b/test/SemaObjC/synthesize-setter-contclass.m
index 36967d4..d754415 100644
--- a/test/SemaObjC/synthesize-setter-contclass.m
+++ b/test/SemaObjC/synthesize-setter-contclass.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1  -fsyntax-only -verify %s
+// RUN: %clang_cc1  -fsyntax-only -verify -Wno-objc-root-class %s
 
 @interface TestClass 
 {