diff --git a/src/desktoptheme/breeze/translucent/dialogs/background.svgz b/src/desktoptheme/breeze/translucent/dialogs/background.svgz
index 00af7c0cc..78ceb7bc2 100644
Binary files a/src/desktoptheme/breeze/translucent/dialogs/background.svgz and b/src/desktoptheme/breeze/translucent/dialogs/background.svgz differ
diff --git a/src/plasmaquick/dialog.cpp b/src/plasmaquick/dialog.cpp
index b3e9b448d..70ecab514 100644
--- a/src/plasmaquick/dialog.cpp
+++ b/src/plasmaquick/dialog.cpp
@@ -885,6 +885,11 @@ void Dialog::resizeEvent(QResizeEvent* re)
 {
     QQuickWindow::resizeEvent(re);
 
+    //A dialog can be resized even if no mainItem has ever been set
+    if (!d->mainItem) {
+        return;
+    }
+
     d->mainItem->disconnect(this);
 
     d->frameSvgItem->setSize(QSizeF(re->size().width(),