diff --git a/firebase-auth.html b/firebase-auth.html
index bd4a661..1db878f 100644
--- a/firebase-auth.html
+++ b/firebase-auth.html
@@ -35,7 +35,7 @@
       },
 
       /**
-       * Default login provider type.  May be one of: `anonymous`, `custom`, `password`, 
+       * Default login provider type.  May be one of: `anonymous`, `custom`, `password`,
        * `facebook`, `github`, `twitter`, `google`.
        */
       provider: {
@@ -110,12 +110,14 @@
       },
 
       _boundAuthHandler: {
+        type: Object,
         value: function() {
           return this._authHandler.bind(this);
         }
       },
 
       _boundOnlineHandler: {
+        type: Object,
         value: function() {
           return this._onlineHandler.bind(this);
         }
diff --git a/firebase-collection.html b/firebase-collection.html
index b4835ad..37d9fca 100644
--- a/firebase-collection.html
+++ b/firebase-collection.html
@@ -215,22 +215,27 @@ <h4>[[dinosaur.__firebaseKey__]]</h4>
         },
 
         _orderByMethodName: {
+          type: String,
           computed: '_computeOrderByMethodName(orderByChild, orderByKey, orderByValue, orderByPriority)'
         },
 
         _orderByTypeCast: {
+          type: Object,
           computed: '_computeOrderByTypeCast(orderByChild, orderByKey, orderByValue, orderByPriority, orderValueType)'
         },
 
         _startAt: {
+          type: Object,
           computed: '_computeStartAt(startAt, _orderByTypeCast)'
         },
 
         _endAt: {
+          type: Object,
           computed: '_computeEndAt(endAt, _orderByTypeCast)'
         },
 
         _equalTo: {
+          type: Object,
           computed: '_computeEqualTo(equalTo, _orderByTypeCast)'
         }
       },