diff --git a/test/CodeGen/X86/alias-error.ll b/test/CodeGen/X86/alias-error.ll
index 1b34d177268..8f01dcff2bf 100644
--- a/test/CodeGen/X86/alias-error.ll
+++ b/test/CodeGen/X86/alias-error.ll
@@ -1,4 +1,4 @@
-; RUN: not llc -mtriple=i686-pc-linux-gnu %s 2>&1 | FileCheck %s
+; RUN: not llc -mtriple=i686-pc-linux-gnu %s -o /dev/null 2>&1 | FileCheck %s
 
 @a = external global i32
 @b = alias i32* @a