diff --git a/.mtn-ignore b/.mtn-ignore
index e0b5524a8..6ee6e46e5 100644
--- a/.mtn-ignore
+++ b/.mtn-ignore
@@ -1,7 +1,7 @@
 config.make
 shared_debug_obj
 obj
-err
+err$
 build\.log
 imgs-.*
 diff