diff --git a/test/MC/MachO/gen-dwarf-cpp.s b/test/MC/MachO/gen-dwarf-cpp.s
index 08b07de9e96..bcc789c23c9 100644
--- a/test/MC/MachO/gen-dwarf-cpp.s
+++ b/test/MC/MachO/gen-dwarf-cpp.s
@@ -14,7 +14,7 @@ L1:	leave
 // rdar://9275556
 
 // We check that the source name "t.s" is picked up
-// CHECK: include_directories[  1] = "{{.*[/\\]}}test{{[/\\]}}MC{{[/\\]}}MachO"
+// CHECK: include_directories[  1] = "{{.*[/\\\\]}}test{{[/\\\\]}}MC{{[/\\\\]}}MachO"
 // CHECK: include_directories[  2] = "inc"
 // CHECK:                 Dir  Mod Time   File Len   File Name
 // CHECK:                 ---- ---------- ---------- ---------------------------