diff --git a/resources/datomic/ion-config.edn b/resources/datomic/ion-config.edn
index bff09256..9fcdb134 100644
--- a/resources/datomic/ion-config.edn
+++ b/resources/datomic/ion-config.edn
@@ -21,5 +21,6 @@
             iol-ion.query/dom
             iol-ion.query/->pattern
             clojure.string/includes?
+            clojure.string/lower-case
             ]
  :app-name "iol-cloud"}