diff --git a/toolkit/mozapps/installer/windows/nsis/make-installremoves.pl b/toolkit/mozapps/installer/windows/nsis/make-installremoves.pl
index bfd0948df1c..5c402f9f75b 100755
--- a/toolkit/mozapps/installer/windows/nsis/make-installremoves.pl
+++ b/toolkit/mozapps/installer/windows/nsis/make-installremoves.pl
@@ -51,7 +51,7 @@ while (<>) {
         print "Dir: \\$file\n";
     }
     else {
-        print "File: $file\n";
+        print "File: \\$file\n";
     }
 }