diff --git a/libs/opmapcontrol/src/mapwidget/opmapwidget.cpp b/libs/opmapcontrol/src/mapwidget/opmapwidget.cpp
index ee3cc5b24895a571540491a442f67116cd78b335..23c895be7ccb1c486d8c7688c245601cfcd70b2b 100644
--- a/libs/opmapcontrol/src/mapwidget/opmapwidget.cpp
+++ b/libs/opmapcontrol/src/mapwidget/opmapwidget.cpp
@@ -225,7 +225,7 @@ namespace mapcontrol
     }
     void OPMapWidget::showEvent(QShowEvent *event)
     {
-        connect(&mscene,SIGNAL(sceneRectChanged(QRectF)),map,SLOT(resize(QRectF)));
+        connect(&mscene,SIGNAL(sceneRectChanged(QRectF)),map,SLOT(resize(QRectF)), Qt::UniqueConnection);
         map->start();
         QGraphicsView::showEvent(event);
     }