diff --git a/include/wx/msw/missing.h b/include/wx/msw/missing.h
index 7d1f8db5c8..ccf135f3ce 100644
--- a/include/wx/msw/missing.h
+++ b/include/wx/msw/missing.h
@@ -570,6 +570,10 @@ typedef struct {
     #define QS_ALLPOSTMESSAGE    0x0100
 #endif
 
+#ifndef WS_EX_TRANSPARENT
+    #define WS_EX_TRANSPARENT 0x00000020L
+#endif
+
 #ifndef WS_EX_CLIENTEDGE
     #define WS_EX_CLIENTEDGE 0x00000200L
 #endif
diff --git a/src/msw/statbox.cpp b/src/msw/statbox.cpp
index 2fbd1acfeb..e23f78abe1 100644
--- a/src/msw/statbox.cpp
+++ b/src/msw/statbox.cpp
@@ -42,6 +42,7 @@
 #include "wx/dcmemory.h"
 
 #include "wx/msw/private.h"
+#include "wx/msw/missing.h"
 
 // ----------------------------------------------------------------------------
 // wxWin macros