diff --git a/app/containers/MessageBox/index.js b/app/containers/MessageBox/index.js
index 9ebf458a7..db5bdf109 100644
--- a/app/containers/MessageBox/index.js
+++ b/app/containers/MessageBox/index.js
@@ -199,6 +199,8 @@ class MessageBox extends Component {
 			}
 			const [, lastChar, name] = result;
 			this.identifyMentionKeyword(name, lastChar);
+		} else {
+			this.stopTrackingMention();
 		}
 	}, 100)