diff --git a/panelsvg.cpp b/panelsvg.cpp
index cd3bdb03f..ac26388b5 100644
--- a/panelsvg.cpp
+++ b/panelsvg.cpp
@@ -379,7 +379,7 @@ void PanelSvg::paintPanel(QPainter* painter, const QRectF& target, const QRectF&
         Q_ASSERT(panel->cachedBackground);
     }
 
-    painter->drawPixmap(target, *(panel->cachedBackground), source);
+    painter->drawPixmap(target, *(panel->cachedBackground), source.isValid() ? source : target);
 }
 
 void PanelSvg::paintPanel(QPainter* painter, const QPointF& pos)
diff --git a/panelsvg.h b/panelsvg.h
index 9770032f7..cbe0cf6ba 100644
--- a/panelsvg.h
+++ b/panelsvg.h
@@ -229,7 +229,8 @@ class PLASMA_EXPORT PanelSvg : public Svg
          * @arg target the target rectangle on the paint device
          * @arg source the portion rectangle of the source image
          */
-        Q_INVOKABLE void paintPanel(QPainter* painter, const QRectF& target, const QRectF& source);
+        Q_INVOKABLE void paintPanel(QPainter* painter, const QRectF& target,
+                                     const QRectF& source = QRectF());
 
         /**
          * Paints the loaded SVG with the elements that represents the border