diff --git a/llvm/test/MC/MachO/gen-dwarf.s b/llvm/test/MC/MachO/gen-dwarf.s
--- a/llvm/test/MC/MachO/gen-dwarf.s
+++ b/llvm/test/MC/MachO/gen-dwarf.s
@@ -1,4 +1,4 @@
-// RUN: llvm-mc -g -triple i386-apple-darwin10 %s -filetype=obj -o %t
+// RUN: mkdir -p %t0 && cd %t0 && llvm-mc -g -triple i386-apple-darwin10 %s -filetype=obj -o %t
 // RUN: llvm-dwarfdump -all %t | FileCheck %s
 
 .globl _bar