diff --git a/src/Dialog.jsx b/src/Dialog.jsx
index 33fdc92a..dba26f9c 100644
--- a/src/Dialog.jsx
+++ b/src/Dialog.jsx
@@ -102,7 +102,9 @@ const Dialog = React.createClass({
   },
 
   onAnimateLeave() {
-    this.refs.wrap.style.display = 'none';
+    if (ReactDOM.findDOMNode(this.refs.wrap)) {
+      this.refs.wrap.style.display = 'none';
+    }
     this.props.onAfterClose();
   },