diff --git a/app/Http/Controllers/DownloadBitcoinEventCalendar.php b/app/Http/Controllers/DownloadBitcoinEventCalendar.php
index 3cdb4ee2..4f6e6919 100644
--- a/app/Http/Controllers/DownloadBitcoinEventCalendar.php
+++ b/app/Http/Controllers/DownloadBitcoinEventCalendar.php
@@ -28,7 +28,7 @@ class DownloadBitcoinEventCalendar extends Controller
         foreach ($events as $event) {
             $entries[] = Event::create()
                               ->name($event->title)
-                              ->uniqueIdentifier('ID'.$event->id)
+                              ->uniqueIdentifier(str($event->title)->slug().$event->id)
                               ->address($event->venue->name.', '.$event->venue->street.', '.$event->venue->city->name.', '.$event->venue->city->country->name)
                               ->description($event->description.' Link: '.$event->link)
                               ->image($event->getFirstMediaUrl('logo'))
diff --git a/app/Http/Controllers/DownloadMeetupCalendar.php b/app/Http/Controllers/DownloadMeetupCalendar.php
index 82d5504f..c99766a9 100644
--- a/app/Http/Controllers/DownloadMeetupCalendar.php
+++ b/app/Http/Controllers/DownloadMeetupCalendar.php
@@ -28,7 +28,7 @@ class DownloadMeetupCalendar extends Controller
         foreach ($meetup->meetupEvents as $event) {
             $entries[] = Event::create()
                               ->name($meetup->name)
-                              ->uniqueIdentifier('ID'.$event->id)
+                              ->uniqueIdentifier(str($meetup->name)->slug.$event->id)
                               ->address($event->location)
                               ->description($event->description.' Link: '.$event->link)
                               ->image($meetup->getFirstMediaUrl('logo'))