diff --git a/Telegram/SourceFiles/boxes/about_box.cpp b/Telegram/SourceFiles/boxes/about_box.cpp
index 6df67f6ef4..93015c97a5 100644
--- a/Telegram/SourceFiles/boxes/about_box.cpp
+++ b/Telegram/SourceFiles/boxes/about_box.cpp
@@ -25,6 +25,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include <QtGui/QGuiApplication>
 #include <QtGui/QClipboard>
 
+#include "window/window_controller.h"
 #include "window/window_session_controller.h"
 #include "window/window_session_controller_link_info.h"
 
@@ -46,7 +47,7 @@ rpl::producer<TextWithEntities> Text() {
 
 } // namespace
 
-AboutBox::AboutBox(QWidget *parent, not_null<Window::SessionController*> controller)
+AboutBox::AboutBox(QWidget *parent, Window::SessionController* controller)
 : _version(this, tr::lng_about_version(tr::now, lt_version, currentVersionText()), st::aboutVersionLink)
 , _text(this, Text(), st::aboutLabel)
 , _controller(controller) {
@@ -58,12 +59,12 @@ void AboutBox::prepare() {
 	addButton(tr::lng_close(), [this] { closeBox(); });
 	addLeftButton(
 		rpl::single(QString("@ayugramchat")),
-		[=]
+		[this, controller = _controller]
 		{
-			_controller->showPeerByLink(Window::PeerByLinkInfo{
+			closeBox();
+			controller->showPeerByLink(Window::PeerByLinkInfo{
 				.usernameOrId = QString("ayugramchat"),
 			});
-			closeBox();
 		});
 
 	_text->setLinksTrusted();
diff --git a/Telegram/SourceFiles/boxes/about_box.h b/Telegram/SourceFiles/boxes/about_box.h
index 16de993393..0748f3f9bb 100644
--- a/Telegram/SourceFiles/boxes/about_box.h
+++ b/Telegram/SourceFiles/boxes/about_box.h
@@ -20,7 +20,7 @@ class FlatLabel;
 
 class AboutBox : public Ui::BoxContent {
 public:
-	AboutBox(QWidget*, not_null<Window::SessionController*> controller);
+	AboutBox(QWidget*, Window::SessionController* controller);
 
 protected:
 	void prepare() override;
@@ -33,7 +33,7 @@ private:
 
 	object_ptr<Ui::LinkButton> _version;
 	object_ptr<Ui::FlatLabel> _text;
-	not_null<Window::SessionController*> _controller;
+	Window::SessionController* _controller;
 
 };