diff --git a/test/CodeGen/struct.c b/test/CodeGen/struct.c
index c71796d..208cbd5 100644
--- a/test/CodeGen/struct.c
+++ b/test/CodeGen/struct.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm -o -
+// RUN: clang -triple i386-unknown-unknown %s -emit-llvm -o -
 
 struct  {
   int x;