diff --git a/src/ajax.php b/src/ajax.php
index 18eb4a6..78d7a26 100644
--- a/src/ajax.php
+++ b/src/ajax.php
@@ -36,7 +36,7 @@ elseif(isset($_GET['loadTasks']))
 	$sqlWhere = $inner = '';
 	if($listId == -1) {
 		$userLists = getUserListsSimple();
-		$sqlWhere .= " AND {$db->prefix}todolist.list_id IN (". implode(array_keys($userLists), ','). ") ";
+		$sqlWhere .= " AND {$db->prefix}todolist.list_id IN (". implode(',', array_keys($userLists)). ") ";
 	}
 	else $sqlWhere .= " AND {$db->prefix}todolist.list_id=". $listId;
 	if(_get('compl') == 0) $sqlWhere .= ' AND compl=0';