diff --git a/lld/test/ELF/reproduce-backslash.s b/lld/test/ELF/reproduce-backslash.s
index b4d8a4ba2b6e..53feb5ff3223 100644
--- a/lld/test/ELF/reproduce-backslash.s
+++ b/lld/test/ELF/reproduce-backslash.s
@@ -3,7 +3,7 @@
 # Test that we don't erroneously replace \ with / on UNIX, as it's
 # legal for a filename to contain backslashes.
 # RUN: llvm-mc %s -o foo\\.o -filetype=obj -triple=x86_64-pc-linux
-# RUN: ld.lld foo\\.o --reproduce repro
+# RUN: ld.lld foo\\.o --reproduce repro.tar
 # RUN: tar tf repro.tar | FileCheck %s
 
 # CHECK: repro/{{.*}}/foo\\.o