diff --git a/lib/Db/CardMapper.php b/lib/Db/CardMapper.php
index 2d633f21b..b6d0faccc 100644
--- a/lib/Db/CardMapper.php
+++ b/lib/Db/CardMapper.php
@@ -54,6 +54,7 @@ class CardMapper extends DeckMapper implements IPermissionMapper {
 	}
 
 	public function update(Entity $entity) {
+		$entity->setDatabaseType($this->databaseType);
 		$entity->setLastModified(time());
 		return parent::update($entity);
 	}