diff --git a/src/libs/advanceddockingsystem/dockareatabbar.cpp b/src/libs/advanceddockingsystem/dockareatabbar.cpp
index 2f7ae3df83e..02d2ae19cde 100644
--- a/src/libs/advanceddockingsystem/dockareatabbar.cpp
+++ b/src/libs/advanceddockingsystem/dockareatabbar.cpp
@@ -63,9 +63,9 @@ namespace ADS
     {
     public:
         DockAreaTabBar *q;
-        DockAreaWidget *m_dockArea;
-        QWidget *m_tabsContainerWidget;
-        QBoxLayout *m_tabsLayout;
+        DockAreaWidget *m_dockArea = nullptr;
+        QWidget *m_tabsContainerWidget = nullptr;
+        QBoxLayout *m_tabsLayout = nullptr;
         int m_currentIndex = -1;
 
         /**