diff --git a/ontmodel/cuneiformontology.ttl b/ontmodel/cuneiformontology.ttl
index 8d13c98f1e8b..6c96b5b29c25 100644
--- a/ontmodel/cuneiformontology.ttl
+++ b/ontmodel/cuneiformontology.ttl
@@ -6,7 +6,7 @@
 @prefix anno: <http://www.w3.org/ns/anno.jsonld> .
 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix cidoc: <http://www.cidoc-crm.org/cidoc-crm/> .
-@prefix cunei: <http://www.purl.org/cuneiform/> .
+@prefix cunei: <http://www.purl.org/cuneiform#> .
 @prefix lemon: <http://lemon-model.net/lemon#> .
 @base <http://www.purl.org/cuneiform#> .