diff --git a/core/Maps/MapManager.php b/core/Maps/MapManager.php
index e78f7493..6b814191 100644
--- a/core/Maps/MapManager.php
+++ b/core/Maps/MapManager.php
@@ -195,7 +195,7 @@ class MapManager implements CallbackListener, CommunicationListener, UsageInform
 	 * @param string      $uid
 	 */
 	public function updateMap($admin, $uid) {
-		if (!$this->maniaControl->getAuthenticationManager()->checkPermission($admin, self::SETTING_PERMISSION_ADD_MAP)) return;
+		if ($admin !== null && !$this->maniaControl->getAuthenticationManager()->checkPermission($admin, self::SETTING_PERMISSION_ADD_MAP)) return;
 
 		$this->updateMapTimestamp($uid);
 
@@ -274,7 +274,7 @@ class MapManager implements CallbackListener, CommunicationListener, UsageInform
 	 * @return bool
 	 */
 	public function removeMap($admin, $uid, $eraseFile = false, $message = true) {
-		if (!$this->maniaControl->getAuthenticationManager()->checkPermission($admin, self::SETTING_PERMISSION_REMOVE_MAP)) return;
+		if ($admin !== null && !$this->maniaControl->getAuthenticationManager()->checkPermission($admin, self::SETTING_PERMISSION_REMOVE_MAP)) return;
 
 		if (!isset($this->maps[$uid])) {
 			if ($admin) {