diff --git a/lib/modem.js b/lib/modem.js
index 703b4d4..3cf3820 100644
--- a/lib/modem.js
+++ b/lib/modem.js
@@ -310,12 +310,13 @@ async function sendSMS(destination, msg) {
 }
 
 function init() {
-    registerModem(modemInfo);
     port = new SerialPort(config.modem.device, { baudRate: 115200 }, (err) => {
         if (err) {
             logger.warn(`Error opening modem. ${err}. Terminating modem ${config.modem.device}.`);
             process.exit(1);
         }
+
+        registerModem(modemInfo);
     });
     port.pipe(parserReadLine);