diff --git a/db_scripts/diff/15140.up b/db_scripts/diff/15140.up
new file mode 100644
index 00000000..d8fbef9d
--- /dev/null
+++ b/db_scripts/diff/15140.up
@@ -0,0 +1,2 @@
+USE kamailio;
+alter table kamailio.voicemail_users change column mailbox mailbox varchar(64) NOT NULL;