diff --git a/test/CodeGen/X86/h-registers-1.ll b/test/CodeGen/X86/h-registers-1.ll
index e97ebab..402cdfe 100644
--- a/test/CodeGen/X86/h-registers-1.ll
+++ b/test/CodeGen/X86/h-registers-1.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=x86-64 > %t
+; RUN: llc < %s -mtriple=x86_64-linux > %t
 ; RUN: grep {movzbl	%\[abcd\]h,} %t | count 8
 ; RUN: grep {%\[abcd\]h} %t | not grep {%r\[\[:digit:\]\]*d}