diff --git a/backend/src/main/resources/db/migration/V38__modify_message_task_test_id.sql b/backend/src/main/resources/db/migration/V38__modify_message_task_test_id.sql
index 02501a3de9..0ad779a39c 100644
--- a/backend/src/main/resources/db/migration/V38__modify_message_task_test_id.sql
+++ b/backend/src/main/resources/db/migration/V38__modify_message_task_test_id.sql
@@ -1,2 +1,2 @@
-alter table message_task
-    add test_id varchar(255) null;
\ No newline at end of file
+ALTER TABLE message_task
+    ADD test_id varchar(50) NULL;
\ No newline at end of file