diff --git a/db/sql/migrations/v2.10.23.sql b/db/sql/migrations/v2.10.23.sql
index b371d2263..c2b307880 100644
--- a/db/sql/migrations/v2.10.23.sql
+++ b/db/sql/migrations/v2.10.23.sql
@@ -1,3 +1,3 @@
 alter table `task` add `git_branch` varchar(255);
 
-alter table `project__template` add `git_branch` varchar(255);
+alter table `project__template` add `git_branch` varchar(255) not null default '';