diff --git a/snippetbox/cmd/web/main.go b/snippetbox/cmd/web/main.go
index d86d205..a7d9d57 100644
--- a/snippetbox/cmd/web/main.go
+++ b/snippetbox/cmd/web/main.go
@@ -1,18 +1,23 @@
 package main
 
 import (
+	"flag"
 	"log"
 	"net/http"
+	"os"
 )
 
 func main() {
+	addr := flag.String("addr", ":4000", "HTTP network address")
+	flag.Parse()
+	infoLog := log.New(os.Stdout, "INFO\t", log.Ldate|log.Ltime)
 	mux := http.NewServeMux()
 	fileServer := http.FileServer(http.Dir("./ui/static/"))
 	mux.Handle("/static/", http.StripPrefix("/static", fileServer))
 	mux.HandleFunc("/", home)
 	mux.HandleFunc("/snippet/view", snippetView)
 	mux.HandleFunc("/snippet/create", snippetCreate)
-	log.Print("Starting server on :4000")
-	err := http.ListenAndServe(":4000", mux)
+	log.Printf("Starting server on %s", *addr)
+	err := http.ListenAndServe(*addr, mux)
 	log.Fatal(err)
 }