diff --git a/ontologies.txt b/ontologies.txt
index 2704293..10ccbc0 100644
--- a/ontologies.txt
+++ b/ontologies.txt
@@ -1,6 +1,7 @@
 http://purl.obolibrary.org/obo/aism/aism-base.owl
 http://purl.obolibrary.org/obo/bspo.owl
 http://purl.obolibrary.org/obo/chebi.owl.gz
+http://purl.obolibrary.org/obo/chmo/chmo-base.owl
 http://purl.obolibrary.org/obo/cl/cl-base.owl
 http://purl.obolibrary.org/obo/cob.owl
 http://purl.obolibrary.org/obo/colao/colao-base.owl