diff --git a/cf/make-proto.pl b/cf/make-proto.pl
index 566534f24..bc323b943 100644
--- a/cf/make-proto.pl
+++ b/cf/make-proto.pl
@@ -180,6 +180,7 @@ sub foo {
     local ($arg) = @_;
     $_ = $arg;
     s/.*\/([^\/]*)/$1/;
+    s/.*\\([^\\]*)/$1/;
     s/[^a-zA-Z0-9]/_/g;
     "__" . $_ . "__";
 }