diff --git a/db/migrations/000010_removewindowid.up.sql b/db/migrations/000010_removewindowid.up.sql
index c131c7b51..10b1bbc0d 100644
--- a/db/migrations/000010_removewindowid.up.sql
+++ b/db/migrations/000010_removewindowid.up.sql
@@ -2,12 +2,12 @@ ALTER TABLE remote_instance RENAME COLUMN windowid TO screenid;
 ALTER TABLE line RENAME COLUMN windowid TO screenid;
 
 UPDATE remote_instance
-SET screenid = (SELECT screen.screenid FROM screen WHERE screen.windowid = remote_instance.screenid)
+SET screenid = COALESCE((SELECT screen.screenid FROM screen WHERE screen.windowid = remote_instance.screenid), '')
 WHERE screenid <> ''
 ;
 
 UPDATE line
-SET screenid = (SELECT screen.screenid FROM screen WHERE screen.windowid = line.screenid)
+SET screenid = COALESCE((SELECT screen.screenid FROM screen WHERE screen.windowid = line.screenid), '')
 WHERE screenid <> ''
 ;