diff --git a/packages/ember-data/lib/system/debug/debug-adapter.js b/packages/ember-data/lib/system/debug/debug-adapter.js
index fb81957483a..ee2ed753f23 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 +43,18 @@ 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(modelClass, modelName) {
+    if (arguments.length < 2) {
+      // Legacy Ember.js < 1.13 support
+      let containerKey = modelClass._debugContainerKey;
+      if (containerKey) {
+        let match = containerKey.match(/model:(.*)/);
+        if (match) {
+          modelName = match[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..34f7356628f 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'
       });
 
     });
@@ -26,7 +28,7 @@ module("DS.DebugAdapter", {
 
     debugAdapter.reopen({
       getModelTypes: function() {
-        return Ember.A([{ klass: App.__container__.lookupFactory('model:post'), name: 'App.Post' }]);
+        return Ember.A([{ klass: App.__container__.lookupFactory('model:post'), name: 'post' }]);
       }
     });
   },
@@ -40,7 +42,7 @@ test("Watching Model Types", function() {
 
   var added = function(types) {
     equal(types.length, 1);
-    equal(types[0].name, 'App.Post');
+    equal(types[0].name, 'post');
     equal(types[0].count, 0);
     strictEqual(types[0].object, store.modelFor('post'));
   };
@@ -74,7 +76,13 @@ test("Watching Records", function() {
     removedCount = count;
   };
 
-  debugAdapter.watchRecords(App.__container__.lookupFactory('model:post'), recordsAdded, recordsUpdated, recordsRemoved);
+  let modelClassOrName;
+  if (debugAdapter.get('acceptsModelName')) {
+    modelClassOrName = 'post';
+  } else {
+    modelClassOrName = App.__container__.lookupFactory('model:post');
+  }
+  debugAdapter.watchRecords(modelClassOrName, recordsAdded, recordsUpdated, recordsRemoved);
 
   equal(get(addedRecords, 'length'), 1);
   record = addedRecords[0];