diff --git a/Makefile b/Makefile
index b6cfddb..a79b35a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 run/api:
-	go run ./cmd/api
+	go run ./cmd/api -db-dsn=${GREENLIGHT_DB_DSN}
 
 db/migrations/up:
 	@echo 'Running up migrations...'
@@ -7,4 +7,6 @@ db/migrations/up:
 
 db/migrations/new: 
 	@echo 'Creating migration files for ${name}...'
-	migrate create -seq -ext=.sql -dir=./migrations ${name}
\ No newline at end of file
+	migrate create -seq -ext=.sql -dir=./migrations ${name}
+
+.PHONY: run/api
\ No newline at end of file
diff --git a/cmd/api/main.go b/cmd/api/main.go
index 066cf1d..8df1311 100644
--- a/cmd/api/main.go
+++ b/cmd/api/main.go
@@ -83,7 +83,7 @@ func main() {
 
 	flag.IntVar(&cfg.port, "port", 4000, "API server port")
 	flag.StringVar(&cfg.env, "env", "development", "Enivornment (development|staging|production)")
-	flag.StringVar(&cfg.db.dsn, "db-dsn", os.Getenv("GREENLIGHT_DB_DSN"), "PostgreSQL DSN")
+	flag.StringVar(&cfg.db.dsn, "db-dsn", "", "PostgreSQL DSN")
 
 	flag.IntVar(&cfg.db.maxOpenConns, "db-max-open-conns", 25, "PostgreSQL max open connections")
 	flag.IntVar(&cfg.db.maxIdleConns, "db-max-idle-conns", 25, "PostgreSQL max idle connections")