diff --git a/src/sparqlunicorn_ontdoc/docgeneration.py b/src/sparqlunicorn_ontdoc/docgeneration.py
index d64b8fdd..f0815fe0 100644
--- a/src/sparqlunicorn_ontdoc/docgeneration.py
+++ b/src/sparqlunicorn_ontdoc/docgeneration.py
@@ -301,6 +301,7 @@ def generateOntDocForNameSpace(self, prefixnamespace,dataformat="HTML"):
             self.logoname=outpath+"/logo/logo."+self.logoname[self.logoname.rfind("."):]
         self.updateProgressBar(0, 1, "Creating classtree and search index")
         subjectstorender = set()
+        subjectstorender(URIRef(voidds))
         for sub in self.graph.subjects(None,None,True):
             if (prefixnamespace in sub and (isinstance(sub,URIRef)) or isinstance(sub,BNode)):
                 subjectstorender.add(sub)
@@ -352,7 +353,7 @@ def generateOntDocForNameSpace(self, prefixnamespace,dataformat="HTML"):
                 tree["core"]["data"].append(tr)
         voidstats["http://rdfs.org/ns/void#classes"]=len(classidset)
         voidstats["http://rdfs.org/ns/void#triples"] = len(self.graph)
-        voidgraph=VoidExporter.createVoidDataset(self.datasettitle,prefixnamespace,self.deploypath,self.outpath,self.licenseuri,self.modtime,voidstats,self.startconcept)
+        voidgraph=VoidExporter.createVoidDataset(self.datasettitle,prefixnamespace,self.deploypath,self.outpath,self.licenseuri,self.modtime,self.labellang,voidstats,self.startconcept)
         self.voidstatshtml=VoidExporter.toHTML(voidstats,self.deploypath)
         self.graph+=voidgraph
         with open(outpath + "style.css", 'w', encoding='utf-8') as f:
diff --git a/src/sparqlunicorn_ontdoc/export/data/voidexporter.py b/src/sparqlunicorn_ontdoc/export/data/voidexporter.py
index 059c78e3..3a647b77 100644
--- a/src/sparqlunicorn_ontdoc/export/data/voidexporter.py
+++ b/src/sparqlunicorn_ontdoc/export/data/voidexporter.py
@@ -7,7 +7,7 @@
 class VoidExporter:
 
     @staticmethod
-    def createVoidDataset(dsname,prefixnamespace,deploypath,outpath,licenseuri,modtime,stats,startconcept=None):
+    def createVoidDataset(dsname,prefixnamespace,deploypath,outpath,licenseuri,modtime,language,stats,startconcept=None):
         g=Graph()
         if dsname==None or dsname=="":
             dsname="dataset"
@@ -17,6 +17,9 @@ def createVoidDataset(dsname,prefixnamespace,deploypath,outpath,licenseuri,modti
               Literal(dsname,lang="en")))
         g.add((URIRef(voidds), URIRef("http://purl.org/dc/terms/title"),
               Literal(dsname,lang="en")))
+        if language!=None and language!="":
+            g.add((URIRef(voidds), URIRef("http://purl.org/dc/elements/1.1/"),
+                  URIRef("http://www.lexvo.org/page/iso639-1/"+str(language))))
         g.add((URIRef(voidds), URIRef("http://purl.org/dc/terms/modified"),
               Literal(modtime,datatype="http://www.w3.org/2001/XMLSchema#dateTime")))
         if licenseuri!=None: