diff --git a/addon/serializers/json-serializer.js b/addon/serializers/json-serializer.js
index 625f12cfff7..22552cf1b98 100644
--- a/addon/serializers/json-serializer.js
+++ b/addon/serializers/json-serializer.js
@@ -740,19 +740,6 @@ export default Serializer.extend({
     }
   },
 
-  /**
-    @method normalizeId
-    @private
-  */
-  normalizeId: function(hash) {
-    var primaryKey = get(this, 'primaryKey');
-
-    if (primaryKey === 'id') { return; }
-
-    hash.id = hash[primaryKey];
-    delete hash[primaryKey];
-  },
-
   /**
     Looks up the property key that was set by the custom `attr` mapping
     passed to the serializer.