diff --git a/package.json b/package.json
index 104e4242..ea8368b2 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "node": ">=0.10.0 <6.0.0"
   },
   "dependencies": {
-    "jsdom": "git://github.com/lehni/jsdom.git#3d55789d0f4d55392721b1e22890837fde472375",
+    "jsdom": "git://github.com/lehni/jsdom.git#bd86dd16666241edd5f25bc4f4e144f24da3c889",
     "source-map-support": "^0.4.0"
   },
   "optionalDependencies": {
diff --git a/src/node/window.js b/src/node/window.js
index a3e58f9c..be7010fd 100644
--- a/src/node/window.js
+++ b/src/node/window.js
@@ -32,7 +32,9 @@ function XMLSerializer() {
 }
 
 XMLSerializer.prototype.serializeToString = function(node) {
-    var text = jsdom.serializeDocument(node);
+    if (!node)
+        return '';
+    var text = node.outerHTML;
     // Fix a jsdom issue where all SVG tagNames are lowercased:
     // https://github.com/tmpvar/jsdom/issues/620
     var tagNames = ['linearGradient', 'radialGradient', 'clipPath', 'textPath'];