diff --git a/ui/widgets/scroll_area.cpp b/ui/widgets/scroll_area.cpp
index 8639388..fdb2b04 100644
--- a/ui/widgets/scroll_area.cpp
+++ b/ui/widgets/scroll_area.cpp
@@ -282,8 +282,16 @@ ScrollArea::ScrollArea(QWidget *parent, const style::ScrollArea &st, bool handle
 	setLayoutDirection(style::LayoutDirection());
 	setFocusPolicy(Qt::NoFocus);
 
-	connect(_verticalBar, SIGNAL(topShadowVisibility(bool)), _topShadow, SLOT(changeVisibility(bool)));
-	connect(_verticalBar, SIGNAL(bottomShadowVisibility(bool)), _bottomShadow, SLOT(changeVisibility(bool)));
+	connect(
+		_verticalBar,
+		&ScrollBar::topShadowVisibility,
+		_topShadow,
+		&ScrollShadow::changeVisibility);
+	connect(
+		_verticalBar,
+		&ScrollBar::bottomShadowVisibility,
+		_bottomShadow,
+		&ScrollShadow::changeVisibility);
 	_verticalBar->updateBar(true);
 
 	verticalScrollBar()->setSingleStep(style::ConvertScale(verticalScrollBar()->singleStep()));
diff --git a/ui/widgets/scroll_area.h b/ui/widgets/scroll_area.h
index c393a1c..c45c3df 100644
--- a/ui/widgets/scroll_area.h
+++ b/ui/widgets/scroll_area.h
@@ -48,15 +48,11 @@ struct ScrollToRequest {
 
 };
 
-class ScrollShadow : public QWidget {
-	Q_OBJECT
-
+class ScrollShadow final : public QWidget {
 public:
 	ScrollShadow(ScrollArea *parent, const style::ScrollArea *st);
 
 	void paintEvent(QPaintEvent *e);
-
-public Q_SLOTS:
 	void changeVisibility(bool shown);
 
 private: