diff --git a/test/CodeGen/X86/2010-01-07-UAMemFeature.ll b/test/CodeGen/X86/2010-01-07-UAMemFeature.ll
index 55abe6a8f00..29ee1316462 100644
--- a/test/CodeGen/X86/2010-01-07-UAMemFeature.ll
+++ b/test/CodeGen/X86/2010-01-07-UAMemFeature.ll
@@ -1,4 +1,4 @@
-; RUN: llc -mattr=vector-unaligned-mem < %s | FileCheck %s
+; RUN: llc -mattr=vector-unaligned-mem -march=x86 < %s | FileCheck %s
 ; CHECK: addps (
 
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"