diff --git a/src/plugins/qmldesigner/components/transitioneditor/transitioneditorpropertyitem.h b/src/plugins/qmldesigner/components/transitioneditor/transitioneditorpropertyitem.h
index aba42b599d8..5dd3c29ddd9 100644
--- a/src/plugins/qmldesigner/components/transitioneditor/transitioneditorpropertyitem.h
+++ b/src/plugins/qmldesigner/components/transitioneditor/transitioneditorpropertyitem.h
@@ -67,7 +67,7 @@ private:
     TransitionEditorGraphicsScene *transitionEditorGraphicsScene() const;
 
     ModelNode m_animation;
-    TransitionEditorBarItem *m_barItem;
+    TransitionEditorBarItem *m_barItem = nullptr;
 };
 
 } // namespace QmlDesigner
diff --git a/src/plugins/qmldesigner/components/transitioneditor/transitioneditorsectionitem.h b/src/plugins/qmldesigner/components/transitioneditor/transitioneditorsectionitem.h
index 22aa21dd288..d7ce78f56c2 100644
--- a/src/plugins/qmldesigner/components/transitioneditor/transitioneditorsectionitem.h
+++ b/src/plugins/qmldesigner/components/transitioneditor/transitioneditorsectionitem.h
@@ -137,9 +137,8 @@ private:
     ModelNode m_targetNode;
     ModelNode m_animationNode;
 
-    TransitionEditorBarItem *m_barItem;
-    TimelineItem *m_dummyItem;
-
+    TransitionEditorBarItem *m_barItem = nullptr;
+    TimelineItem *m_dummyItem = nullptr;
 };
 
 } // namespace QmlDesigner