diff --git a/lib/Viewer.js b/lib/Viewer.js
index a3d916d9..71d207d6 100644
--- a/lib/Viewer.js
+++ b/lib/Viewer.js
@@ -365,7 +365,7 @@ Viewer.prototype.attachTo = function(parentNode) {
   this.detach();
 
   // unwrap jQuery if provided
-  if (parentNode.get) {
+  if (parentNode.get && parentNode.constructor.prototype.jquery) {
     parentNode = parentNode.get(0);
   }