diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/MessagingUtils.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/MessagingUtils.kt
index 5c787781..8d79ea7d 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/MessagingUtils.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/MessagingUtils.kt
@@ -175,6 +175,7 @@ class MessagingUtils(val context: Context) {
                 when (resultCode) {
                     SmsManager.RESULT_ERROR_NO_SERVICE -> context.getString(R.string.error_service_is_unavailable)
                     SmsManager.RESULT_ERROR_RADIO_OFF -> context.getString(R.string.error_radio_turned_off)
+                    SmsManager.RESULT_NO_DEFAULT_SMS_APP -> context.getString(R.string.sim_card_not_available)
                     else -> context.getString(R.string.unknown_error_occurred_sending_message, resultCode)
                 }
             }