diff --git a/clutter/clutter/Makefile.am.marshal b/clutter/clutter/Makefile.am.marshal
index f29629ce1..084dc5543 100644
--- a/clutter/clutter/Makefile.am.marshal
+++ b/clutter/clutter/Makefile.am.marshal
@@ -34,6 +34,7 @@ stamp-marshal: $(marshal_list)
 	$(AM_V_GEN)$(GLIB_GENMARSHAL) \
 		--prefix=$(glib_marshal_prefix) \
 		--header \
+		--valist-marshallers \
 	$(marshal_list) > xgen-mh \
 	&& (cmp -s xgen-mh $(marshal_h) || cp -f xgen-mh $(marshal_h)) \
 	&& rm -f xgen-mh \
@@ -46,6 +47,8 @@ $(marshal_c): $(marshal_h)
 	$(AM_V_GEN)$(GLIB_GENMARSHAL) \
 		--prefix=$(glib_marshal_prefix) \
 		--body \
+		--valist-marshallers \
+		--prototypes \
 	$(marshal_list) > xgen-mc \
 	&& (cmp -s xgen-mc $(marshal_c) || cp -f xgen-mc $(marshal_c)) \
 	&& rm -f xgen-mc