diff --git a/samples/html/test/test.cpp b/samples/html/test/test.cpp
index ed81723f0b..574b40ad67 100644
--- a/samples/html/test/test.cpp
+++ b/samples/html/test/test.cpp
@@ -23,6 +23,7 @@
 
 #include <wx/image.h>
 #include <wx/html/htmlwin.h>
+#include <wx/fs_inet.h>
 
 // ----------------------------------------------------------------------------
 // private classes