diff --git a/LibGUI/GSlider.cpp b/LibGUI/GSlider.cpp
index 3aacd0e28c..f136b9c83a 100644
--- a/LibGUI/GSlider.cpp
+++ b/LibGUI/GSlider.cpp
@@ -50,7 +50,7 @@ void GSlider::paint_event(GPaintEvent& event)
     track_rect.center_vertically_within(inner_rect());
 
     StylePainter::paint_frame(painter, track_rect, FrameShape::Panel, FrameShadow::Sunken, 1);
-    StylePainter::paint_button(painter, knob_rect(), ButtonStyle::Normal, false, false);
+    StylePainter::paint_button(painter, knob_rect(), ButtonStyle::Normal, false, m_knob_hovered);
 }
 
 Rect GSlider::knob_rect() const
@@ -84,6 +84,7 @@ void GSlider::mousedown_event(GMouseEvent& event)
 
 void GSlider::mousemove_event(GMouseEvent& event)
 {
+    set_knob_hovered(knob_rect().contains(event.position()));
     if (m_dragging) {
         float delta = event.position().x() - m_drag_origin.x();
         float scrubbable_range = inner_rect().width();
@@ -104,3 +105,17 @@ void GSlider::mouseup_event(GMouseEvent& event)
 
     return GWidget::mouseup_event(event);
 }
+
+void GSlider::leave_event(CEvent& event)
+{
+    set_knob_hovered(false);
+    GWidget::leave_event(event);
+}
+
+void GSlider::set_knob_hovered(bool hovered)
+{
+    if (m_knob_hovered == hovered)
+        return;
+    m_knob_hovered = hovered;
+    update(knob_rect());
+}
diff --git a/LibGUI/GSlider.h b/LibGUI/GSlider.h
index 020c856925..6fd4a9a791 100644
--- a/LibGUI/GSlider.h
+++ b/LibGUI/GSlider.h
@@ -28,12 +28,16 @@ protected:
     virtual void mousedown_event(GMouseEvent&) override;
     virtual void mousemove_event(GMouseEvent&) override;
     virtual void mouseup_event(GMouseEvent&) override;
+    virtual void leave_event(CEvent&) override;
 
 private:
+    void set_knob_hovered(bool);
+
     int m_value { 0 };
     int m_min { 0 };
     int m_max { 100 };
 
+    bool m_knob_hovered { false };
     bool m_dragging { false };
     int m_drag_origin_value { 0 };
     Point m_drag_origin;