--- a/util/dataforms.lua	Fri Aug 03 20:51:08 2018 +0200
+++ b/util/dataforms.lua	Fri Aug 03 20:59:15 2018 +0200
@@ -26,7 +26,8 @@
 end
 
 function form_t.form(layout, data, formtype)
-	local form = st.stanza("x", { xmlns = xmlns_forms, type = formtype or "form" });
+	if not formtype then formtype = "form" end
+	local form = st.stanza("x", { xmlns = xmlns_forms, type = formtype });
 	if layout.title then
 		form:tag("title"):text(layout.title):up();
 	end