diff --git a/clang/test/CodeGen/PR15826.c b/clang/test/CodeGen/PR15826.c
index e002c3e6108b..9ce178499390 100644
--- a/clang/test/CodeGen/PR15826.c
+++ b/clang/test/CodeGen/PR15826.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -verify -emit-llvm %s
+// RUN: %clang_cc1 -verify -emit-llvm %s -o %t
 
 /* Testcase for PR15826 - clang hits assert in clang::ASTContext::getASTRecordLayout */
 struct sysctl_req {