diff --git a/internal/storage/sql.go b/internal/storage/sql.go
index 3e20c47b2..2cbc6df08 100644
--- a/internal/storage/sql.go
+++ b/internal/storage/sql.go
@@ -118,7 +118,7 @@ var (
 			pool TEXT NULL,
 			create_time DATE NOT NULL,
 			current INTEGER DEFAULT 0,
-			type TEXT NULL
+			type TEXT NOT NULL
 		)
 	`
 
@@ -131,7 +131,7 @@ var (
 	CheckCluster = `SELECT COUNT(*) FROM pragma_table_info('clusters') WHERE name = 'type'`
 
 	// update new cluster column
-	UpdateCluster = `ALTER TABLE clusters ADD COLUMN type TEXT NULL default 'develop'`
+	UpdateCluster = `ALTER TABLE clusters ADD COLUMN type TEXT NOT NULL default 'develop'`
 
 	// delete cluster
 	DeleteCluster = `DELETE from clusters WHERE name = ?`