diff --git a/src/plugins/projectexplorer/panelswidget.cpp b/src/plugins/projectexplorer/panelswidget.cpp
index eb101e25b30..2ba2e5c5830 100644
--- a/src/plugins/projectexplorer/panelswidget.cpp
+++ b/src/plugins/projectexplorer/panelswidget.cpp
@@ -148,7 +148,7 @@ PanelsWidget::PanelsWidget(QWidget *parent) :
 }
 
 PanelsWidget::PanelsWidget(const QString &displayName, const QIcon &icon, QWidget *widget)
-    : PanelsWidget()
+    : PanelsWidget(nullptr)
 {
     addPropertiesPanel(displayName, icon, widget);
 }