diff --git a/packages/ember-data/lib/system/debug/debug-adapter.js b/packages/ember-data/lib/system/debug/debug-adapter.js
index fb81957483a..8c62dd97ffc 100644
--- a/packages/ember-data/lib/system/debug/debug-adapter.js
+++ b/packages/ember-data/lib/system/debug/debug-adapter.js
@@ -5,6 +5,7 @@ import Model from "ember-data/system/model";
 var get = Ember.get;
 var capitalize = Ember.String.capitalize;
 var underscore = Ember.String.underscore;
+const { assert } = Ember;
 
 /**
   Extend `Ember.DataAdapter` with ED specific code.
@@ -42,11 +43,15 @@ export default Ember.DataAdapter.extend({
     return columns;
   },
 
-  getRecords: function(modelNameOrFactory) {
-    // TODO: Ask Teddy what we should do here.
-    // Ideally this should always get passed a string.
-
-    var modelName = typeof modelNameOrFactory === 'string' ? modelNameOrFactory : modelNameOrFactory.modelName;
+  getRecords: function(klass, modelName) {
+    if (arguments.length < 2) {
+      // Legacy Ember.js < 1.13 support
+      let containerKey = klass._debugContainerKey;
+      if (containerKey) {
+        modelName = containerKey.match(/model:(.*)/)[1];
+      }
+    }
+    assert("Cannot find model name. Please upgrade to Ember.js >= 1.13 for Ember Inspector support", !!modelName);
     return this.get('store').all(modelName);
   },
 
diff --git a/packages/ember-data/tests/integration/debug-adapter-test.js b/packages/ember-data/tests/integration/debug-adapter-test.js
index 1bada903bd8..90b309e0d04 100644
--- a/packages/ember-data/tests/integration/debug-adapter-test.js
+++ b/packages/ember-data/tests/integration/debug-adapter-test.js
@@ -15,8 +15,10 @@ module("DS.DebugAdapter", {
       App.Post = DS.Model.extend({
         title: DS.attr('string')
       });
+
+      // TODO: Remove this when Ember is upgraded to >= 1.13
       App.Post.reopenClass({
-        modelName: 'post'
+        _debugContainerKey: 'model:post'
       });
 
     });