diff --git a/test/CodeGen/PowerPC/ppc64-byval-align.ll b/test/CodeGen/PowerPC/ppc64-byval-align.ll
index 1bbd6da85b2..0e73cf2b0e0 100644
--- a/test/CodeGen/PowerPC/ppc64-byval-align.ll
+++ b/test/CodeGen/PowerPC/ppc64-byval-align.ll
@@ -1,4 +1,4 @@
-; RUN: llc -O1 < %s -march=ppc64 | FileCheck %s
+; RUN: llc -O1 < %s -march=ppc64 -mcpu=pwr7 | FileCheck %s
 
 target datalayout = "E-m:e-i64:64-n32:64"
 target triple = "powerpc64-unknown-linux-gnu"