diff --git a/descrip.mms b/descrip.mms
index 325bb4fd84..b39f2bc227 100644
--- a/descrip.mms
+++ b/descrip.mms
@@ -26,6 +26,8 @@ gtk : [.include.wx]setup.h
 	$(MMS)$(MMSQUALIFIERS)/macro=(__WXGTK__=1)
 	set default [-.common]
 	$(MMS)$(MMSQUALIFIERS)/macro=(__WXGTK__=1)
+	set default [-.html]
+	$(MMS)$(MMSQUALIFIERS)/macro=(__WXGTK__=1)
 	set default [-.unix]
 	$(MMS)$(MMSQUALIFIERS)/macro=(__WXGTK__=1)
 	set default [-.gtk]