diff --git a/apps/dav/lib/Listener/UserEventsListener.php b/apps/dav/lib/Listener/UserEventsListener.php
index 3dfa3af58dd..e5220a89321 100644
--- a/apps/dav/lib/Listener/UserEventsListener.php
+++ b/apps/dav/lib/Listener/UserEventsListener.php
@@ -140,8 +140,9 @@ class UserEventsListener implements IEventListener {
 	}
 
 	public function postDeleteGroup(string $gid): void {
-		$this->calDav->deleteAllSharesByUser('principals/groups/' . $gid);
-		$this->cardDav->deleteAllSharesByUser('principals/groups/' . $gid);
+		$encodedGid = urlencode($gid);
+		$this->calDav->deleteAllSharesByUser('principals/groups/' . $encodedGid);
+		$this->cardDav->deleteAllSharesByUser('principals/groups/' . $encodedGid);
 	}
 
 	public function changeUser(IUser $user, string $feature): void {