diff --git a/test/CodeGen/X86/vec_insert_4.ll b/test/CodeGen/X86/vec_insert_4.ll
index f78a33b650b..a0aa0c0bfea 100644
--- a/test/CodeGen/X86/vec_insert_4.ll
+++ b/test/CodeGen/X86/vec_insert_4.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | llc -march=x86 | grep 1084227584 | count 1
+; RUN: llvm-as < %s | llc -march=x86 -mcpu=yonah | grep 1084227584 | count 1
 
 ; ModuleID = '<stdin>'
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"