diff --git a/.hgignore b/.hgignore
--- a/.hgignore
+++ b/.hgignore
@@ -24,6 +24,7 @@ syntax: regexp
 ^kallithea/front-end/node_modules$
 ^kallithea/front-end/package-lock\.json$
 ^kallithea/front-end/tmp$
+^kallithea/public/codemirror$
 ^kallithea/public/css/select2-spinner\.gif$
 ^kallithea/public/css/select2\.png$
 ^kallithea/public/css/select2x2\.png$