diff --git a/schema/html5/web-forms2.rnc b/schema/html5/web-forms2.rnc
index 277c24ec0..79182f52a 100644
--- a/schema/html5/web-forms2.rnc
+++ b/schema/html5/web-forms2.rnc
@@ -716,10 +716,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 		( option.elem* & common.inner.phrasing )
 	datalist.attrs =
 		(	common.attrs
-		&	(	common.attrs.aria.role.listbox # aria-multiselectable must be false; check by assertions
-			|	common.attrs.aria.implicit.listbox
-			)?
-		)
+		)	
 
 	common.elem.phrasing |= datalist.elem