diff --git a/kde/plasma/look-and-feel/Sweet-Mars/contents/osd/Osd.qml b/kde/plasma/look-and-feel/Sweet-Mars/contents/osd/Osd.qml
index 2288ec11..c0b6a490 100644
--- a/kde/plasma/look-and-feel/Sweet-Mars/contents/osd/Osd.qml
+++ b/kde/plasma/look-and-feel/Sweet-Mars/contents/osd/Osd.qml
@@ -37,6 +37,8 @@ PlasmaCore.Dialog {
     // Set to true if the value is meant for progress bar,
     // false for displaying the value as normal text
     property bool showingProgress: false
+    // Maximum value of progress bar (overriden for volume amplification)
+    property int osdMaxValue: 100
 
     mainItem: OsdItem {
         rootItem: root
diff --git a/kde/plasma/look-and-feel/Sweet-Mars/contents/osd/OsdItem.qml b/kde/plasma/look-and-feel/Sweet-Mars/contents/osd/OsdItem.qml
index ea3c73a1..b2ab3208 100644
--- a/kde/plasma/look-and-feel/Sweet-Mars/contents/osd/OsdItem.qml
+++ b/kde/plasma/look-and-feel/Sweet-Mars/contents/osd/OsdItem.qml
@@ -61,7 +61,7 @@ Item {
 
         visible: rootItem.showingProgress
         minimumValue: 0
-        maximumValue: 100
+        maximumValue: rootItem.osdMaxValue
 
         value: Number(rootItem.osdValue)
     }