diff --git a/Telegram/SourceFiles/boxes/confirm_box.cpp b/Telegram/SourceFiles/boxes/confirm_box.cpp
index 461090a2c..2b80c12c9 100644
--- a/Telegram/SourceFiles/boxes/confirm_box.cpp
+++ b/Telegram/SourceFiles/boxes/confirm_box.cpp
@@ -387,21 +387,30 @@ void ConvertToSupergroupBox::paintEvent(QPaintEvent *e) {
 PinMessageBox::PinMessageBox(QWidget *, ChannelData *channel, MsgId msgId)
     : _channel(channel)
     , _msgId(msgId)
-    , _text(this, lang(lng_pinned_pin_sure), Ui::FlatLabel::InitType::Simple, st::boxLabel)
-    , _notify(this, lang(lng_pinned_notify), true, st::defaultBoxCheckbox) {}
+    , _text(this, lang(lng_pinned_pin_sure), Ui::FlatLabel::InitType::Simple, st::boxLabel) {}
 
 void PinMessageBox::prepare() {
+	if (_channel->isMegagroup()) {
+		_notify.create(this, lang(lng_pinned_notify), true, st::defaultBoxCheckbox);
+	}
+
+	auto height = st::boxPadding.top() + _text->height() + st::boxPadding.bottom();
+	if (_notify) {
+		height += st::boxMediumSkip + _notify->heightNoMargins();
+	}
+
 	addButton(langFactory(lng_pinned_pin), [this] { pinMessage(); });
 	addButton(langFactory(lng_cancel), [this] { closeBox(); });
 
-	setDimensions(st::boxWidth, st::boxPadding.top() + _text->height() + st::boxMediumSkip +
-	                                _notify->heightNoMargins() + st::boxPadding.bottom());
+	setDimensions(st::boxWidth, height);
 }
 
 void PinMessageBox::resizeEvent(QResizeEvent *e) {
 	BoxContent::resizeEvent(e);
 	_text->moveToLeft(st::boxPadding.left(), st::boxPadding.top());
-	_notify->moveToLeft(st::boxPadding.left(), _text->y() + _text->height() + st::boxMediumSkip);
+	if (_notify) {
+		_notify->moveToLeft(st::boxPadding.left(), _text->y() + _text->height() + st::boxMediumSkip);
+	}
 }
 
 void PinMessageBox::keyPressEvent(QKeyEvent *e) {
@@ -416,7 +425,7 @@ void PinMessageBox::pinMessage() {
 	if (_requestId) return;
 
 	auto flags = MTPchannels_UpdatePinnedMessage::Flags(0);
-	if (!_notify->checked()) {
+	if (_notify && !_notify->checked()) {
 		flags |= MTPchannels_UpdatePinnedMessage::Flag::f_silent;
 	}
 	_requestId = MTP::send(MTPchannels_UpdatePinnedMessage(MTP_flags(flags), _channel->inputChannel, MTP_int(_msgId)),
diff --git a/Telegram/SourceFiles/boxes/confirm_box.h b/Telegram/SourceFiles/boxes/confirm_box.h
index 4d49334a7..100ffd5f2 100644
--- a/Telegram/SourceFiles/boxes/confirm_box.h
+++ b/Telegram/SourceFiles/boxes/confirm_box.h
@@ -166,7 +166,7 @@ private:
 	MsgId _msgId;
 
 	object_ptr<Ui::FlatLabel> _text;
-	object_ptr<Ui::Checkbox> _notify;
+	object_ptr<Ui::Checkbox> _notify = {nullptr};
 
 	mtpRequestId _requestId = 0;
 };