diff --git a/src/msw/power.cpp b/src/msw/power.cpp
index 022e624dad..cf96885bbb 100644
--- a/src/msw/power.cpp
+++ b/src/msw/power.cpp
@@ -28,6 +28,7 @@
 #endif //WX_PRECOMP
 
 #include "wx/power.h"
+#include "wx/msw/private.h"
 
 // ----------------------------------------------------------------------------
 // helper functions