diff --git a/src/backend/elasticsearch.js b/src/backend/elasticsearch.js
index 4667f4cc..0ed05723 100644
--- a/src/backend/elasticsearch.js
+++ b/src/backend/elasticsearch.js
@@ -120,7 +120,7 @@ this.recline.Backend.ElasticSearch = this.recline.Backend.ElasticSearch || {};
       var out = {};
       out[filter.type] = {}
       if (filter.type === 'term') {
-        out.term[filter.field] = filter.term;
+        out.term[filter.field] = filter.term.toLowerCase();
       } else if (filter.type === 'geo_distance') {
         out.geo_distance[filter.field] = filter.point;
         out.geo_distance.distance = filter.distance;