diff --git a/src/lib/dom-api.html b/src/lib/dom-api.html
index df38fc68f5..75ceea0921 100644
--- a/src/lib/dom-api.html
+++ b/src/lib/dom-api.html
@@ -63,11 +63,15 @@
         if (this.node.contains(node)) {
           return true;
         }
+
         var n = node;
+        // wrap document for SD polyfill
+        var wrappedDocument = wrap(document);
 
         // walk from node to `this` or `document`
-        while (n && n !== document && n !== this.node) {
-          n = n.parentNode || n.host;
+        while (n && n !== wrappedDocument && n !== this.node) {
+          // use logical parentnode, or native ShadowRoot host
+          n = Polymer.dom(n).parentNode || n.host;
         }
         return n === this.node;
       },
diff --git a/test/unit/polymer-dom-elements.html b/test/unit/polymer-dom-elements.html
index 0129b71513..8065f0b727 100644
--- a/test/unit/polymer-dom-elements.html
+++ b/test/unit/polymer-dom-elements.html
@@ -333,7 +333,7 @@
 <dom-module id="x-deep-contains">
   <template>
     <div id="shadowed"></div>
-    <content></content>
+    <content select="#light"></content>
   </template>
   <script>
     Polymer({
@@ -342,6 +342,9 @@
         var e = document.createElement('div');
         e.id = 'light';
         Polymer.dom(this).appendChild(e);
+        e = document.createElement('div');
+        e.id = 'notdistributed';
+        Polymer.dom(this).appendChild(e);
       }
     });
   </script>
diff --git a/test/unit/polymer-dom.js b/test/unit/polymer-dom.js
index 4a61228980..d198a4580a 100644
--- a/test/unit/polymer-dom.js
+++ b/test/unit/polymer-dom.js
@@ -921,7 +921,8 @@ suite('Polymer.dom non-distributed elements', function() {
   test('Deep Contains', function() {
     var el = document.querySelector('x-deep-contains');
     var shadow = el.$.shadowed;
-    var light = el.querySelector('#light');
+    var light = Polymer.dom(el).querySelector('#light');
+    var notdistributed = Polymer.dom(el).querySelector('#notdistributed');
     var disconnected = document.createElement('div');
     var separate = document.createElement('div');
     document.body.appendChild(separate);
@@ -929,6 +930,7 @@ suite('Polymer.dom non-distributed elements', function() {
     assert.equal(Polymer.dom(el).deepContains(el), true, 'Element should deepContain itself');
     assert.equal(Polymer.dom(el).deepContains(shadow), true, 'Shadowed Child element should be found');
     assert.equal(Polymer.dom(el).deepContains(light), true, 'Light Child element should be found');
+    assert.equal(Polymer.dom(el).deepContains(notdistributed), true, 'Non-distributed child element should be found');
     assert.equal(Polymer.dom(el).deepContains(disconnected), false, 'Disconnected element should not be found');
     assert.equal(Polymer.dom(el).deepContains(separate), false, 'Unassociated, attached element should not be found');