diff --git a/src/js/tempusdominus-core.js b/src/js/tempusdominus-core.js
index 8c4b5b3..55bf8f9 100644
--- a/src/js/tempusdominus-core.js
+++ b/src/js/tempusdominus-core.js
@@ -571,7 +571,7 @@ const DateTimePicker = (($, moment) => {
         }
 
         _notifyEvent(e) {
-            if ((e.type === DateTimePicker.Event.CHANGE && (e.date && e.date.isSame(e.oldDate)) || !e.date && !e.oldDate)) {
+            if (e.type === DateTimePicker.Event.CHANGE && ((e.date && e.date.isSame(e.oldDate)) || (!e.date && !e.oldDate))) {
                 return;
             }
             this._element.trigger(e);