diff --git a/owl_classification.py b/owl_classification.py
index 9a407d0..adaddda 100755
--- a/owl_classification.py
+++ b/owl_classification.py
@@ -72,7 +72,7 @@
             g.add((childNode, OWL.equivalentClass, restriction))
             g.add((restriction, RDF.type, OWL.Restriction))
             g.add((restriction, OWL.onProperty, URIRef(args.property)))
-            g.add((restriction, OWL.hasValue, URIRef(urljoin(args.codes, childam))))
+            g.add((restriction, OWL.hasValue, URIRef(urljoin(args.codes, child))))
             defined.add(childNode)
     c = Collection(g, childrenNode, childNodes)