diff --git a/ShExR.shex b/ShExR.shex
index b8207d7..a7b7937 100644
--- a/ShExR.shex
+++ b/ShExR.shex
@@ -153,7 +153,6 @@ start=@<#Schema>
 <#TripleConstraint> CLOSED {
   a [sx:TripleConstraint] ;
   sx:inverse [true false] ? ;
-  sx:negated [true false] ? ;
   sx:min xsd:integer ? ;
   sx:max xsd:integer ? ;
   sx:predicate IRI ;