diff --git a/components/lib/mention/Mention.js b/components/lib/mention/Mention.js
index 79a8153cce..ecf854c6f5 100644
--- a/components/lib/mention/Mention.js
+++ b/components/lib/mention/Mention.js
@@ -182,6 +182,7 @@ export const Mention = React.memo(
                 const nextText = value.substring(triggerState.index + currentText.length);
 
                 inputRef.current.value = `${prevText}${selectedText} ${nextText}`;
+                event.target = inputRef.current;
                 props.onChange && props.onChange(event);
             }