diff --git a/backend/src/index.ts b/backend/src/index.ts
index 8531fb6..4264bfd 100644
--- a/backend/src/index.ts
+++ b/backend/src/index.ts
@@ -222,7 +222,7 @@ app.post('/api/events', upload.single('wallpaper'), async (req: MulterRequest, r
         emailNotificationsEnabled ? 1 : 0,
         email_recipients || '',
         eventConclusionEmailEnabled ? 1 : 0, // Save new field
-        event_conclusion_message || '' // Save new field
+    event_conclusion_message === undefined ? null : event_conclusion_message // Save new field
       ]
     );
 
@@ -994,4 +994,4 @@ app.listen(port, async () => {
   await connectToDatabase();
   // Optionally run the task on startup for testing
   // sendConclusionEmails();
-});
\ No newline at end of file
+});