diff --git a/test/unit/templatizer-elements.html b/test/unit/templatizer-elements.html
index da4fce0d61..d0c384bad0 100644
--- a/test/unit/templatizer-elements.html
+++ b/test/unit/templatizer-elements.html
@@ -129,6 +129,8 @@
       });
       var parent = Polymer.dom(this).parentNode;
       Polymer.dom(parent).appendChild(this.instance.root);
+      // Ensure templatizer class does not leak reference to dataHost
+      assert.notOk(this.ctor.prototype._template.dataHost, 'templatizer class should not leak reference to dataHost');
     }
   });
 
@@ -196,6 +198,8 @@
       });
       var parent = Polymer.dom(this).parentNode;
       Polymer.dom(parent).appendChild(this.instance.root);
+      // Ensure templatizer class does not leak reference to dataHost
+      assert.notOk(this.ctor.prototype._template.dataHost, 'templatizer class should not leak reference to dataHost');
     }
   });