diff --git a/.gitignore b/.gitignore
index 846dc44..1b74800 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,6 +26,7 @@ share/python-wheels/
 .installed.cfg
 *.egg
 MANIFEST
+.DS_Store
 
 # PyInstaller
 #  Usually these files are written by a python script from a template
diff --git a/reproschema/tests/reproschema-shacl.ttl b/reproschema/tests/reproschema-shacl.ttl
index a89f8ed..b7ccc3f 100644
--- a/reproschema/tests/reproschema-shacl.ttl
+++ b/reproschema/tests/reproschema-shacl.ttl
@@ -226,6 +226,10 @@ reproschema:AddPropertiesShape a sh:NodeShape ;
         [ sh:datatype xsd:boolean ;
             sh:path schema:valueRequired ],
 
+        [ sh:nodeKind sh:IRI ;
+            sh:in ( reproschema:AllowExport reproschema:DisableBack reproschema:AutoAdvance reproschema:AllowReplay reproschema:Skipped reproschema:DontKnow reproschema:TimedOut ) ;
+            sh:path reproschema:allow ],
+
         [ sh:datatype rdf:langString ;
             sh:pattern "^P(?!$)(\\d+(?:\\.\\d+)?Y)?(\\d+(?:\\.\\d+)?M)?(\\d+(?:\\.\\d+)?W)?(\\d+(?:\\.\\d+)?D)?(T(?=\\d)(\\d+(?:\\.\\d+)?H)?(\\d+(?:\\.\\d+)?M)?(\\d+(?:\\.\\d+)?S)?)?$" ;
             sh:path reproschema:randomMaxDelay ],