diff --git a/src/msw/helpchm.cpp b/src/msw/helpchm.cpp
index a9c663e74a..e88789a042 100644
--- a/src/msw/helpchm.cpp
+++ b/src/msw/helpchm.cpp
@@ -18,7 +18,7 @@
 
 #if wxUSE_HELP && wxUSE_MS_HTML_HELP
 
-#include "wx/filefn.h"
+#include "wx/filename.h"
 #include "wx/msw/helpchm.h"
 
 #include "wx/dynload.h"
diff --git a/src/msw/helpwin.cpp b/src/msw/helpwin.cpp
index 919c311214..72339e4d98 100644
--- a/src/msw/helpwin.cpp
+++ b/src/msw/helpwin.cpp
@@ -21,7 +21,7 @@
 #ifndef WX_PRECOMP
 #endif
 
-#include "wx/filefn.h"
+#include "wx/filename.h"
 #include "wx/msw/helpwin.h"
 
 #include <time.h>