diff --git a/src/main/java/com/github/rnewson/couchdb/lucene/DatabaseIndexer.java b/src/main/java/com/github/rnewson/couchdb/lucene/DatabaseIndexer.java
index e2127b7e..9e55b420 100644
--- a/src/main/java/com/github/rnewson/couchdb/lucene/DatabaseIndexer.java
+++ b/src/main/java/com/github/rnewson/couchdb/lucene/DatabaseIndexer.java
@@ -139,6 +139,7 @@ public Query parse(final String query, final Operator operator, final Analyzer a
 					Constants.DEFAULT_FIELD, analyzer);
 			parser.setDefaultOperator(operator);
 			parser.setAllowLeadingWildcard(ini.getBoolean("lucene.allowLeadingWildcard", false));
+			parser.setLowercaseExpandedTerms(ini.getBoolean("lucene.lowercaseExpandedTerms", true));
 			return parser.parse(query);
 		}