diff --git a/test/Sema/builtins.c b/test/Sema/builtins.c
index 787630c..21a1f72 100644
--- a/test/Sema/builtins.c
+++ b/test/Sema/builtins.c
@@ -26,7 +26,7 @@
 #define CFSTR __builtin___CFStringMakeConstantString
 void test7() {
   const void *X;
-  X = CFSTR("\242");
+  X = CFSTR("\242"); // expected-warning {{input conversion stopped}}
   X = CFSTR("\0"); // expected-warning {{ CFString literal contains NUL character }}
   X = CFSTR(242); // expected-error {{ CFString literal is not a string constant }} expected-warning {{incompatible integer to pointer conversion}}
   X = CFSTR("foo", "bar"); // expected-error {{too many arguments to function call}}