diff --git a/packages/ember-runtime/lib/mixins/container_proxy.js b/packages/ember-runtime/lib/mixins/container_proxy.js
index <HASH>..<HASH> 100644
--- a/packages/ember-runtime/lib/mixins/container_proxy.js
+++ b/packages/ember-runtime/lib/mixins/container_proxy.js
@@ -60,11 +60,11 @@ export default Mixin.create({
    Given a fullName return the corresponding factory.
 
    @private
-   @method lookupFactory
+   @method _lookupFactory
    @param {String} fullName
    @return {any}
    */
-  lookupFactory: containerAlias('lookupFactory'),
+  _lookupFactory: containerAlias('lookupFactory'),
 
   /**
    @private
[FEATURE ember-registry-container-reform] Underscore private methods.