diff --git a/test/MC/X86/dwarf-size-field-overflow.test b/test/MC/X86/dwarf-size-field-overflow.test
index 954772a28f009..72f3bd3a90038 100644
--- a/test/MC/X86/dwarf-size-field-overflow.test
+++ b/test/MC/X86/dwarf-size-field-overflow.test
@@ -1,7 +1,7 @@
 # This test generates too many debug location entries to fit into 65KB required
 # by DWARF < 5. Check that the location is set to 0 instead of crashing.
 #
-# RUN: %python %s 4000 | llc -filetype=obj -o %t
+# RUN: %python %s 4000 | llc -mtriple=x86_64-apple-darwin -filetype=obj -o %t
 # RUN: llvm-dwarfdump %t | FileCheck %s
 #
 # CHECK:       0x0000004d:       DW_TAG_formal_parameter