diff --git a/test/CodeGenObjCXX/debug-info.mm b/test/CodeGenObjCXX/debug-info.mm
index 30af4c3..0778889 100644
--- a/test/CodeGenObjCXX/debug-info.mm
+++ b/test/CodeGenObjCXX/debug-info.mm
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -g -emit-obj %s
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -g -emit-obj %s -o /dev/null
 
 // This test passes if clang doesn't crash.