diff --git a/dist/react-tooltip.js b/dist/react-tooltip.js
index 79c4165bc..fdcb1347e 100644
--- a/dist/react-tooltip.js
+++ b/dist/react-tooltip.js
@@ -148,6 +148,7 @@ var ReactTooltip = (function (_Component) {
   };
 
   ReactTooltip.prototype.componentWillUnmount = function componentWillUnmount() {
+    clearTimeout(this.delayShowLoop);
     this.unbindListener();
     this.removeScrollListener();
     this.mount = false;
diff --git a/src/index.js b/src/index.js
index 93868c664..c2bde3de4 100644
--- a/src/index.js
+++ b/src/index.js
@@ -107,6 +107,7 @@ export default class ReactTooltip extends Component {
   }
 
   componentWillUnmount () {
+    clearTimeout(this.delayShowLoop)
     this.unbindListener()
     this.removeScrollListener()
     this.mount = false