diff --git a/src/browser/NativeMessagingBase.cpp b/src/browser/NativeMessagingBase.cpp
index 743953e9..f61a3604 100644
--- a/src/browser/NativeMessagingBase.cpp
+++ b/src/browser/NativeMessagingBase.cpp
@@ -121,7 +121,8 @@ void NativeMessagingBase::sendReply(const QJsonObject& json)
 void NativeMessagingBase::sendReply(const QString& reply)
 {
     if (!reply.isEmpty()) {
-        uint len = reply.length();
+        QByteArray bytes = reply.toUtf8();
+        uint len = bytes.size();
         std::cout << char(((len>>0) & 0xFF)) << char(((len>>8) & 0xFF)) << char(((len>>16) & 0xFF)) << char(((len>>24) & 0xFF));
         std::cout << reply.toStdString() << std::flush;
     }