diff --git a/share/schema.sql b/share/schema.sql
index 3562f1e..d4f66e0 100644
--- a/share/schema.sql
+++ b/share/schema.sql
@@ -43,7 +43,10 @@ CREATE VIEW mime_type_actions AS
 		ON mime_actions.mime_type = mime_types.id;
 CREATE TRIGGER update_mime_actions INSTEAD OF UPDATE OF action ON mime_type_actions
 BEGIN
-	UPDATE mime_actions SET action=new.action WHERE mime_type=old.id;
+	UPDATE	mime_actions
+	SET	action=new.action
+	WHERE	mime_type=old.id
+	AND	destination_id=old.destination_id;
 END;
 
 CREATE TRIGGER create_mime_actions AFTER INSERT ON mime_types