diff --git a/core/plugin.coffee b/core/plugin.coffee
index 1af98ba..0174aa5 100644
--- a/core/plugin.coffee
+++ b/core/plugin.coffee
@@ -30,4 +30,4 @@ exports.writeConfig = (path, content, callback) ->
       throw err if err
 
       fs.unlink path, ->
-        callback
+        callback()