diff --git a/lib/modem.js b/lib/modem.js
index 42db930..4ab4a81 100644
--- a/lib/modem.js
+++ b/lib/modem.js
@@ -324,7 +324,7 @@ function executeUSSD(code) {
         await mutex.setLockWaitForCommand();
 
         await mutex.setLockWaitForSubCommand();
-        await writeToPort(`AT+CUSD=1,"${code.trim()}",15\r`);
+        await writeToPort(`AT+CUSD=1,"${code}",15\r`);
 
         await mutex.setLockWaitForSubCommand();
         mutex.releaseLockWaitForSubCommand();