diff --git a/modules/t/MultiTestDB.conf.default b/modules/t/MultiTestDB.conf.default
index db1ecbe9bde37e8ef50ec3ca568893e7b0eb3c23..096d28f94fe8777cc2b996165bba6a2a8fc4051b 100644
--- a/modules/t/MultiTestDB.conf.default
+++ b/modules/t/MultiTestDB.conf.default
@@ -11,6 +11,9 @@
     },
     'circ' => {
       'core' => 'Bio::EnsEMBL::DBSQL::DBAdaptor',
+    },
+    'ontology' => {
+      'ontology' => 'Bio::EnsEMBL::DBSQL::OntologyDBAdaptor',
     }
   },
 }