diff --git a/lib/widgets/alarm_widgets/fixed_time_alarm_form.dart b/lib/widgets/alarm_widgets/fixed_time_alarm_form.dart
index 6fadce6..bdd9037 100644
--- a/lib/widgets/alarm_widgets/fixed_time_alarm_form.dart
+++ b/lib/widgets/alarm_widgets/fixed_time_alarm_form.dart
@@ -69,7 +69,9 @@ class _FixedTimeAlarmFormState extends State<FixedTimeAlarmForm> {
                 icon: Icon(Icons.calendar_month),
               ),
             ),
-            validator: dateTimeValidator,
+            validator: (value) {
+              return notEmptyValidator(value) ?? dateTimeValidator(value);
+            },
             keyboardType: TextInputType.datetime,
             textInputAction: TextInputAction.next,
           ),