diff --git a/include/wx/animdecod.h b/include/wx/animdecod.h
index 899c044185..8e7b2a0a00 100644
--- a/include/wx/animdecod.h
+++ b/include/wx/animdecod.h
@@ -17,6 +17,7 @@
 #include "wx/colour.h"
 #include "wx/gdicmn.h"
 #include "wx/log.h"
+#include "wx/stream.h"
 
 class WXDLLIMPEXP_FWD_BASE wxInputStream;
 class WXDLLIMPEXP_FWD_CORE wxImage;