diff --git a/lib/ToastContainer.js b/lib/ToastContainer.js
index 631b88c..ad459db 100644
--- a/lib/ToastContainer.js
+++ b/lib/ToastContainer.js
@@ -130,7 +130,7 @@ class ToastContainer extends Component {
     };
 
     componentWillUnmount = () => {
-        this._hide();
+        this._root&&this._hide();
     };
 
     shouldComponentUpdate = (nextProps, nextState) => {