diff --git a/examples/gh-pages/scripts/components/events/SimpleClickEvent.js b/examples/gh-pages/scripts/components/events/SimpleClickEvent.js
index 047f193e..65d3d08d 100644
--- a/examples/gh-pages/scripts/components/events/SimpleClickEvent.js
+++ b/examples/gh-pages/scripts/components/events/SimpleClickEvent.js
@@ -24,6 +24,10 @@ class SimpleClickEvent extends React.Component {
 
   _handle_map_center_changed () {
     const {center, timeoutId} = this.state;
+    const {marker} = this.refs;
+    if (!marker) {
+      return;
+    }
     const newPos = this.refs.marker.getPosition();
     if (center.equals(newPos)) {
       // Notice: Check newPos equality here,
diff --git a/src/internals/VirtualContainer.js b/src/internals/VirtualContainer.js
index e898cf48..5af1b630 100644
--- a/src/internals/VirtualContainer.js
+++ b/src/internals/VirtualContainer.js
@@ -19,7 +19,6 @@ class VirtualContainer extends React.Component {
     const extraProps = {
       googleMapsApi: props.googleMapsApi,
       map: props.map,
-      ref: null,
     };
 
     return React.Children.map(props.children, (child) => {