diff --git a/run.sh b/run.sh
index 2a18643..dc4b88b 100755
--- a/run.sh
+++ b/run.sh
@@ -32,6 +32,15 @@ vsftp_main() {
 		if [ -z "$username" ]; then break ; fi
 		vsftp_add_user "$username" "$password"	
 	done
+	if [ $idx -eq 1 ]; then 
+		echo "Please export environement variables for users"
+		echo ""
+		echo "Ex: "
+		echo "  VSFTP_USER_1_USERNAME=johnsnow"
+		echo "  VSFTP_USER_1_PASSWORD=Winter1sC0ming"
+		echo "  VSFTP_USER_2_USERNAME=tyrionlannister"
+		echo "  VSFTP_USER_2_PASSWORD=aLann1ster4lwaysPaysHisD3bts"
+	fi
 
 	echo "Starting VSFTP"
 	exec vsftpd /etc/vsftpd/vsftpd.conf