diff --git a/internal/entity/db.go b/internal/entity/db.go
index 0589623f5..52d543574 100644
--- a/internal/entity/db.go
+++ b/internal/entity/db.go
@@ -15,6 +15,10 @@ func init() {
 
 // Db returns the default *gorm.DB connection.
 func Db() *gorm.DB {
+	if dbConn == nil {
+		return nil
+	}
+
 	return dbConn.Db()
 }