diff --git a/clang/test/CodeGenCXX/implicit-exception-spec.cpp b/clang/test/CodeGenCXX/implicit-exception-spec.cpp
index cf363bd..e1a969a 100644
--- a/clang/test/CodeGenCXX/implicit-exception-spec.cpp
+++ b/clang/test/CodeGenCXX/implicit-exception-spec.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -std=c++11 -o - -fcxx-exceptions -fexceptions | FileCheck -check-prefix=CHECK %s
+// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -emit-llvm -std=c++11 -o - -fcxx-exceptions -fexceptions | FileCheck %s
 
 struct A {
   A();