diff --git a/src/chatmodel.cpp b/src/chatmodel.cpp
index f549507..a89c5d0 100644
--- a/src/chatmodel.cpp
+++ b/src/chatmodel.cpp
@@ -558,7 +558,7 @@ void ChatModel::handleMessageSendSucceeded(qlonglong messageId, qlonglong oldMes
         const QModelIndex messageIndex(index(pos));
         emit dataChanged(messageIndex, messageIndex, changedRoles);
         emit lastReadSentMessageUpdated(calculateLastReadSentMessageId());
-        tdLibWrapper->viewMessage(QString::number(this->chatId), QString::number(messageId), false);
+        tdLibWrapper->viewMessage(this->chatId, messageId, false);
     }
 }
 
diff --git a/src/tdlibwrapper.cpp b/src/tdlibwrapper.cpp
index 8182971..0c83b61 100644
--- a/src/tdlibwrapper.cpp
+++ b/src/tdlibwrapper.cpp
@@ -333,7 +333,7 @@ void TDLibWrapper::getChatHistory(qlonglong chatId, qlonglong fromMessageId, int
     this->sendRequest(requestObject);
 }
 
-void TDLibWrapper::viewMessage(const QString &chatId, const QString &messageId, bool force)
+void TDLibWrapper::viewMessage(qlonglong chatId, qlonglong messageId, bool force)
 {
     LOG("Mark message as viewed" << chatId << messageId);
     QVariantMap requestObject;
diff --git a/src/tdlibwrapper.h b/src/tdlibwrapper.h
index fbe5e92..80b2199 100644
--- a/src/tdlibwrapper.h
+++ b/src/tdlibwrapper.h
@@ -158,7 +158,7 @@ public:
     Q_INVOKABLE void leaveChat(const QString &chatId);
     Q_INVOKABLE void deleteChat(qlonglong chatId);
     Q_INVOKABLE void getChatHistory(qlonglong chatId, qlonglong fromMessageId = 0, int offset = -1, int limit = 50, bool onlyLocal = false);
-    Q_INVOKABLE void viewMessage(const QString &chatId, const QString &messageId, bool force);
+    Q_INVOKABLE void viewMessage(qlonglong chatId, qlonglong messageId, bool force);
     Q_INVOKABLE void viewSponsoredMessage(qlonglong chatId, qlonglong messageId);
     Q_INVOKABLE void pinMessage(const QString &chatId, const QString &messageId, bool disableNotification = false);
     Q_INVOKABLE void unpinMessage(const QString &chatId, const QString &messageId);