diff --git a/libs/kiplatform/msw/app.cpp b/libs/kiplatform/msw/app.cpp
index 0073291ffc..c4251a1028 100644
--- a/libs/kiplatform/msw/app.cpp
+++ b/libs/kiplatform/msw/app.cpp
@@ -23,6 +23,7 @@
 #include <wx/log.h>
 #include <wx/string.h>
 #include <wx/window.h>
+#include <wx/msgdlg.h>
 
 #include <windows.h>
 #include <strsafe.h>