diff --git a/migration/19.12/1912.sql b/migration/19.12/1912.sql
index 67d69b3f5abf748c59ace9cda3460da82445ff13..58eac152b8d96be2083c38bb2ca94d576bc4245e 100644
--- a/migration/19.12/1912.sql
+++ b/migration/19.12/1912.sql
@@ -357,7 +357,9 @@ ALTER TABLE res_letterbox ADD COLUMN IF NOT EXISTS scan_wkstation CHARACTER VARY
 ALTER TABLE res_letterbox ADD COLUMN IF NOT EXISTS scan_batch CHARACTER VARYING (50) DEFAULT NULL::character varying;
 ALTER TABLE res_letterbox ADD COLUMN IF NOT EXISTS scan_postmark CHARACTER VARYING (50) DEFAULT NULL::character varying;
 ALTER TABLE res_letterbox ADD COLUMN IF NOT EXISTS custom_fields jsonb;
-ALTER TABLE res_letterbox ADD COLUMN IF NOT EXISTS linked_resources jsonb NOT NULL DEFAULT '[]';
+
+ALTER TABLE res_letterbox DROP COLUMN IF EXISTS linked_resources;
+ALTER TABLE res_letterbox ADD COLUMN linked_resources jsonb NOT NULL DEFAULT '[]';
 
 
 /* USERGROUP_CONTENT */