diff --git a/chameo.ttl b/chameo.ttl
index 64f07de..80ade30 100644
--- a/chameo.ttl
+++ b/chameo.ttl
@@ -15,7 +15,7 @@
 @base <http://emmo.info/emmo/domain/chameo/chameo#> .
 
 <http://emmo.info/emmo/domain/chameo/chameo> rdf:type owl:Ontology ;
-                                              owl:versionIRI <http://emmo.info/emmo/domain/chameo/1.0.0-beta3/chameo.ttl> ;
+                                              owl:versionIRI <http://emmo.info/emmo/domain/chameo/1.0.0-beta3/chameo> ;
                                               owl:imports <http://emmo.info/emmo/1.0.0-beta5/mereocausality> ,
                                                           <http://emmo.info/emmo/1.0.0-beta5/disciplines/computerscience> ,
                                                           <http://emmo.info/emmo/1.0.0-beta5/disciplines/isq> ,