diff --git a/test/CodeGen/X86/2009-06-07-ExpandMMXBitcast.ll b/test/CodeGen/X86/2009-06-07-ExpandMMXBitcast.ll
index 56015c6..c3687a5 100644
--- a/test/CodeGen/X86/2009-06-07-ExpandMMXBitcast.ll
+++ b/test/CodeGen/X86/2009-06-07-ExpandMMXBitcast.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | llc | grep movl | count 2
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+mmx | grep movl | count 2
 
 define i64 @a(i32 %a, i32 %b) nounwind readnone {
 entry: