diff --git a/src/blackgui/components/interpolationlogdisplaydialog.cpp b/src/blackgui/components/interpolationlogdisplaydialog.cpp
index b94de0a28..11a0ea131 100644
--- a/src/blackgui/components/interpolationlogdisplaydialog.cpp
+++ b/src/blackgui/components/interpolationlogdisplaydialog.cpp
@@ -36,7 +36,10 @@ namespace BlackGui
         }
 
         CInterpolationLogDisplayDialog::~CInterpolationLogDisplayDialog()
-        { }
+        {
+            //! \todo KB 2018-05 this is a hack, I have no idea why I need to invalidate the parent. But without doing it, the dtor of comp_InterpolationLogDisplay is called tywice
+            ui->comp_InterpolationLogDisplay->setParent(nullptr);
+        }
 
         void CInterpolationLogDisplayDialog::setSimulator(CSimulatorCommon *simulatorCommon)
         {