diff --git a/main.go b/main.go
index eff7c25..8f47f2d 100644
--- a/main.go
+++ b/main.go
@@ -2,23 +2,32 @@ package main
 
 import (
 	"bufio"
+	"errors"
 	"flag"
 	"fmt"
-	"gitea.hbanafa.com/hesham/mystc-api/pkg/endpoints"
-	"gitea.hbanafa.com/hesham/mystc-api/pkg/models"
 	"os"
 	"strings"
+
+	"gitea.hbanafa.com/hesham/mystc-api/pkg/endpoints"
+	"gitea.hbanafa.com/hesham/mystc-api/pkg/models"
 )
 
 const URL_MYSTC_API_BASE = "https://mystc.stc.com.sa"
 const PATH_PHONES_LIST = "/api/mystc-api-authentication/phones-list"
 
+var ErrMissingFlags = errors.New("flag: missing required flags. use -h")
+
 func main() {
 
     id := flag.String("id", "", "National ID or Iqama")
     pw := flag.String("password", "", "MySTC Password")
     flag.Parse()
 
+    if *id == "" || *pw == "" {
+        fmt.Fprintf(os.Stderr, "%s\n", ErrMissingFlags.Error())
+        os.Exit(1)
+    }
+
     phones, err := endpoints.GetPhonesList(*id, *pw)
     if err != nil {
         fmt.Println(err.Error())