diff --git a/lib/src/flutter_sms_platform.dart b/lib/src/flutter_sms_platform.dart
index f60f952..96d28b1 100644
--- a/lib/src/flutter_sms_platform.dart
+++ b/lib/src/flutter_sms_platform.dart
@@ -41,7 +41,7 @@ class FlutterSmsPlatform extends PlatformInterface {
       mapData["recipients"] = recipients;
       return _channel.invokeMethod<String>('sendSMS', mapData);
     } else {
-      String _phones = recipients.join(",");
+      String _phones = recipients.join(";");
       mapData["recipients"] = _phones;
       return _channel.invokeMethod<String>('sendSMS', mapData);
     }