diff --git a/.travis.yml b/.travis.yml
index ecf1886..77b1e0a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ language: node_js
 node_js:
   # we recommend testing addons with the same minimum supported node version as Ember CLI
   # so that your addon works for all apps
-  - "4"
+  - "6"
 
 sudo: required
 dist: trusty
diff --git a/index.js b/index.js
index 8007754..636946d 100644
--- a/index.js
+++ b/index.js
@@ -150,9 +150,5 @@ module.exports = {
     }
 
     return except;
-  },
-
-  isDevelopingAddon() {
-    return true;
   }
 };