diff --git a/extensions/tree/tree.coffee b/extensions/tree/tree.coffee
index 4618cae96..d38faba44 100644
--- a/extensions/tree/tree.coffee
+++ b/extensions/tree/tree.coffee
@@ -18,9 +18,11 @@ class Tree extends Extension
   startup: (@project) =>
     @pane = new TreePane this
     @pane.show()
+    super
 
   shutdown: ->
     @pane.remove()
+    super
 
   urls: (root=@project.url) ->
     _.compact _.map (fs.list root), (url) =>
diff --git a/src/atom/editor.coffee b/src/atom/editor.coffee
index 19bb78174..21c8bc0e0 100644
--- a/src/atom/editor.coffee
+++ b/src/atom/editor.coffee
@@ -40,7 +40,7 @@ class Editor extends Resource
     session.setUndoManager new UndoManager
     @ace.setSession session
 
-    super()
+    super
 
   modeMap:
     js: 'javascript'