diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index c73b70bd6..c87515042 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -94,6 +94,16 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include <QtCore/QCoreApplication>
 #include <QtCore/QMimeData>
 
+namespace {
+
+void ClearBotStartToken(PeerData *peer) {
+	if (peer && peer->isUser() && peer->asUser()->isBot()) {
+		peer->asUser()->botInfo->startToken = QString();
+	}
+}
+
+} // namespace
+
 enum StackItemType {
 	HistoryStackItem,
 	SectionStackItem,
@@ -1205,12 +1215,6 @@ void MainWidget::setInnerFocus() {
 	}
 }
 
-void MainWidget::clearBotStartToken(PeerData *peer) {
-	if (peer && peer->isUser() && peer->asUser()->isBot()) {
-		peer->asUser()->botInfo->startToken = QString();
-	}
-}
-
 void MainWidget::showChooseReportMessages(
 		not_null<PeerData*> peer,
 		Ui::ReportReason reason,
@@ -1290,7 +1294,9 @@ void MainWidget::showHistory(
 		if (peer->migrateTo()) {
 			peer = peer->migrateTo();
 			peerId = peer->id;
-			if (showAtMsgId > 0) showAtMsgId = -showAtMsgId;
+			if (showAtMsgId > 0) {
+				showAtMsgId = -showAtMsgId;
+			}
 		}
 		const auto unavailable = peer->computeUnavailableReason();
 		if (!unavailable.isEmpty()) {
@@ -1345,7 +1351,7 @@ void MainWidget::showHistory(
 	bool foundInStack = !peerId;
 	if (foundInStack || (way == Way::ClearStack)) {
 		for (const auto &item : _stack) {
-			clearBotStartToken(item->peer());
+			ClearBotStartToken(item->peer());
 		}
 		_stack.clear();
 	} else {
@@ -1353,7 +1359,7 @@ void MainWidget::showHistory(
 			if (_stack.at(i)->type() == HistoryStackItem && _stack.at(i)->peer()->id == peerId) {
 				foundInStack = true;
 				while (int(_stack.size()) > i + 1) {
-					clearBotStartToken(_stack.back()->peer());
+					ClearBotStartToken(_stack.back()->peer());
 					_stack.pop_back();
 				}
 				_stack.pop_back();
@@ -1415,7 +1421,7 @@ void MainWidget::showHistory(
 	if (_history->peer()
 		&& _history->peer()->id != peerId
 		&& way != Way::Forward) {
-		clearBotStartToken(_history->peer());
+		ClearBotStartToken(_history->peer());
 	}
 	_history->showHistory(
 		peerId,
@@ -1981,8 +1987,8 @@ bool MainWidget::showBackFromStack(const SectionShow &params) {
 	}
 	auto item = std::move(_stack.back());
 	_stack.pop_back();
-	if (auto currentHistoryPeer = _history->peer()) {
-		clearBotStartToken(currentHistoryPeer);
+	if (const auto currentHistoryPeer = _history->peer()) {
+		ClearBotStartToken(currentHistoryPeer);
 	}
 	_thirdSectionFromStack = item->takeThirdSectionMemento();
 	if (item->type() == HistoryStackItem) {
diff --git a/Telegram/SourceFiles/mainwidget.h b/Telegram/SourceFiles/mainwidget.h
index 12ef1359c..6680cff57 100644
--- a/Telegram/SourceFiles/mainwidget.h
+++ b/Telegram/SourceFiles/mainwidget.h
@@ -173,8 +173,6 @@ public:
 	void checkChatBackground();
 	Image *newBackgroundThumb();
 
-	void clearBotStartToken(PeerData *peer);
-
 	void setInnerFocus();
 
 	bool contentOverlapped(const QRect &globalRect);