diff --git a/resources/misc/db_update_mysql_4_5.sql b/resources/misc/db_update_mysql_4_5.sql
index 4efb66fbe..6b02c9e85 100755
--- a/resources/misc/db_update_mysql_4_5.sql
+++ b/resources/misc/db_update_mysql_4_5.sql
@@ -16,8 +16,4 @@ UPDATE Feeds
 SET custom_id = (SELECT id FROM Feeds t WHERE t.id = Feeds.id)
 WHERE Feeds.custom_id IS NULL;
 -- !
-UPDATE Messages
-SET custom_id = (SELECT id FROM Messages t WHERE t.id = Messages.id)
-WHERE Messages.custom_id IS NULL;
--- !
 UPDATE Information SET inf_value = '5' WHERE inf_key = 'schema_version';
\ No newline at end of file
diff --git a/resources/misc/db_update_sqlite_4_5.sql b/resources/misc/db_update_sqlite_4_5.sql
index 4efb66fbe..6b02c9e85 100755
--- a/resources/misc/db_update_sqlite_4_5.sql
+++ b/resources/misc/db_update_sqlite_4_5.sql
@@ -16,8 +16,4 @@ UPDATE Feeds
 SET custom_id = (SELECT id FROM Feeds t WHERE t.id = Feeds.id)
 WHERE Feeds.custom_id IS NULL;
 -- !
-UPDATE Messages
-SET custom_id = (SELECT id FROM Messages t WHERE t.id = Messages.id)
-WHERE Messages.custom_id IS NULL;
--- !
 UPDATE Information SET inf_value = '5' WHERE inf_key = 'schema_version';
\ No newline at end of file