diff --git a/src/atom-environment.coffee b/src/atom-environment.coffee
index 5247ceb97..327b9ea1a 100644
--- a/src/atom-environment.coffee
+++ b/src/atom-environment.coffee
@@ -224,11 +224,12 @@ class AtomEnvironment extends Model
 
     @observeAutoHideMenuBar()
 
-    checkPortableHomeWritable = ->
+    checkPortableHomeWritable = =>
       responseChannel = "check-portable-home-writable-response"
       ipcRenderer.on responseChannel, (event, response) ->
         ipcRenderer.removeAllListeners(responseChannel)
-        atom.notifications.addWarning("#{response.message.replace(/([\\\.+\\-_#!])/g, '\\$1')}") if not response.writable
+        @notifications.addWarning("#{response.message.replace(/([\\\.+\\-_#!])/g, '\\$1')}") if not response.writable
+      @disposables.add new Disposable => ipcRenderer.removeAllListeners(responseChannel)
       ipcRenderer.send('check-portable-home-writable', responseChannel)
 
     checkPortableHomeWritable()