diff --git a/src/qt/treectrl.cpp b/src/qt/treectrl.cpp
index 016d7eb3f7..5962b888b1 100644
--- a/src/qt/treectrl.cpp
+++ b/src/qt/treectrl.cpp
@@ -15,6 +15,7 @@
 #include "wx/treectrl.h"
 #include "wx/imaglist.h"
 #include "wx/settings.h"
+#include "wx/sharedptr.h"
 
 #include "wx/qt/private/winevent.h"
 #include "wx/qt/private/treeitemdelegate.h"