diff --git a/dialog.cpp b/dialog.cpp
index 77dde2f74..c7f0ef191 100644
--- a/dialog.cpp
+++ b/dialog.cpp
@@ -289,6 +289,7 @@ Dialog::Dialog(QWidget *parent, Qt::WindowFlags f)
     QPalette pal = palette();
     pal.setColor(backgroundRole(), Qt::transparent);
     setPalette(pal);
+    WindowEffects::overrideShadow(winId(), true);
 
     d->adjustViewTimer = new QTimer(this);
     d->adjustViewTimer->setSingleShot(true);
@@ -438,7 +439,7 @@ void Dialog::resizeEvent(QResizeEvent *e)
     d->background->resizeFrame(e->size());
 
     if (Plasma::Theme::defaultTheme()->windowTranslucencyEnabled()) {
-        setMask(d->background->mask());
+        clearMask();
     } else {
         setMask(QRect(QPoint(0, 0), size()));
     }
diff --git a/windoweffects.cpp b/windoweffects.cpp
index f1e6f0f73..7529c826b 100644
--- a/windoweffects.cpp
+++ b/windoweffects.cpp
@@ -279,7 +279,7 @@ void highlightWindows(WId controller, const QList<WId> &ids)
 #endif
 }
 
-void shadowOverride(WId window, bool override)
+void overrideShadow(WId window, bool override)
 {
 #ifdef Q_WS_X11
     Display *dpy = QX11Info::display();
diff --git a/windoweffects.h b/windoweffects.h
index fe0ba92bd..311a8c6b9 100644
--- a/windoweffects.h
+++ b/windoweffects.h
@@ -24,7 +24,7 @@
 
 #include <plasma/plasma.h>
 
-/** @headerfile plasma/windoweffect.h <Plasma/PaintUtils> */
+/** @headerfile plasma/windoweffect.h <Plasma/WindowEffect> */
 
 namespace Plasma
 {