diff --git a/qrenderdoc/Widgets/Extended/RDTreeWidget.h b/qrenderdoc/Widgets/Extended/RDTreeWidget.h
index b0942af8d..e9870c6b9 100644
--- a/qrenderdoc/Widgets/Extended/RDTreeWidget.h
+++ b/qrenderdoc/Widgets/Extended/RDTreeWidget.h
@@ -234,7 +234,7 @@ private:
 
   QStringList m_headers;
 
-  bool m_queueUpdates;
+  bool m_queueUpdates = false;
 
   RDTreeWidgetItem *m_queuedItem;
   QPair<int, int> m_lowestIndex;