diff --git a/libraries/controllers/table/TableRelationController.php b/libraries/controllers/table/TableRelationController.php
index 2af9198c30..db4db1b2c1 100644
--- a/libraries/controllers/table/TableRelationController.php
+++ b/libraries/controllers/table/TableRelationController.php
@@ -112,6 +112,9 @@ class TableRelationController extends TableController
             )
         );
 
+        // Set the database
+        $this->dbi->selectDb($this->db);
+
         // updates for Internal relations
         if (isset($_POST['destination_db']) && $this->cfgRelation['relwork']) {
             $this->updateForInternalRelationAction();