diff --git a/test/tools/llvm-objcopy/MachO/real-world-input-copy.test b/test/tools/llvm-objcopy/MachO/real-world-input-copy.test
index 47a389e..d29c2cc 100644
--- a/test/tools/llvm-objcopy/MachO/real-world-input-copy.test
+++ b/test/tools/llvm-objcopy/MachO/real-world-input-copy.test
@@ -1,3 +1,4 @@
+REQUIRES: system-darwin
 # RUN: llvm-mc -assemble -triple i386-apple-darwin9 -filetype=obj %p/Inputs/macho.32.s -o %t.32.o
 # RUN: llvm-objcopy %t.32.o %t.32.copy.o
 # RUN: cmp %t.32.o %t.32.copy.o