diff --git a/firebase-element.html b/firebase-element.html
index 310df34..f05d5ea 100644
--- a/firebase-element.html
+++ b/firebase-element.html
@@ -377,7 +377,7 @@ <h3>My Firebase Data</h3>
       var key = snapshot.name();
       if (this.data instanceof Array) {
         this.data.splice(key, 1);
-        if (data.length == 0) {
+        if (this.data.length == 0) {
           this._setData(null);
         }
       } else if (this.data) {