diff --git a/db_scripts/diff/15246.down b/db_scripts/diff/15246.down
new file mode 100644
index 00000000..65ed6f40
--- /dev/null
+++ b/db_scripts/diff/15246.down
@@ -0,0 +1,5 @@
+use kamailio;
+
+alter table kamailio.dialog
+	modify from_tag varchar(64) not NULL,
+	modify to_tag varchar(64) not NULL;
diff --git a/db_scripts/diff/15246.up b/db_scripts/diff/15246.up
new file mode 100644
index 00000000..a5bccc23
--- /dev/null
+++ b/db_scripts/diff/15246.up
@@ -0,0 +1,5 @@
+use kamailio;
+
+alter table kamailio.dialog
+	modify from_tag varchar(128) not NULL,
+	modify to_tag varchar(128) not NULL;