diff --git a/libs/db/src/go/db.go b/libs/db/src/go/db.go
index a2350b2..e0ab4fb 100644
--- a/libs/db/src/go/db.go
+++ b/libs/db/src/go/db.go
@@ -11,6 +11,10 @@ import (
 func New(database_url string) *gorm.DB {
 	fmt.Printf("database_url: %s\n", database_url)
 
+	if database_url == "" {
+		database_url = "host=localhost user=postgres password=postgres dbname=postgres port=5432 sslmode=disable"
+	}
+
 	db, err := gorm.Open(postgres.New(postgres.Config{
 		DSN: database_url,
 	}), &gorm.Config{})