diff --git a/applet/contents/ui/ListItemBase.qml b/applet/contents/ui/ListItemBase.qml
--- a/applet/contents/ui/ListItemBase.qml
+++ b/applet/contents/ui/ListItemBase.qml
@@ -126,15 +126,19 @@
                 }
 
                 RowLayout {
-                    PlasmaCore.IconItem {
-                        readonly property bool isPlayback: type.substring(0, 4) == "sink"
-                        Layout.preferredWidth: units.iconSizes.small
-                        Layout.preferredHeight: Layout.preferredWidth
-                        source: Icon.name(Volume, Muted, isPlayback ? "audio-volume" : "microphone-sensitivity")
+                    PlasmaComponents.ToolButton {
+                        Layout.preferredHeight: units.iconSizes.small
+                        Layout.preferredWidth: Layout.preferredHeight
+                        onClicked: Muted = !Muted
 
-                        MouseArea {
+                        PlasmaCore.IconItem {
                             anchors.fill: parent
-                            onPressed: Muted = !Muted
+                            readonly property bool isPlayback: type.substring(0, 4) == "sink"
+                            source: Icon.name(Volume, Muted, isPlayback ? "audio-volume" : "microphone-sensitivity")
+
+                            // From Plasma's ToolButtonStyle:
+                            active: parent.hovered
+                            colorGroup: parent.hovered ? PlasmaCore.Theme.ButtonColorGroup : PlasmaCore.ColorScope.colorGroup
                         }
                     }