diff --git a/lib/lucene_to_regex.js b/lib/lucene_to_regex.js
index 6cbe2aa..3784248 100644
--- a/lib/lucene_to_regex.js
+++ b/lib/lucene_to_regex.js
@@ -36,10 +36,11 @@ const buildRegex = (ast, negate) => {
 module.exports = {
   parse: lucene.parse,
   toString: lucene.toString,
+  buildRegex: buildRegex,
   toRegex: (query, flag) => {
     const ast = lucene.parse(query)
     const regex = `^${buildRegex(ast)}.*$`
 
     return new RegExp(regex, flag)
   }
-}
\ No newline at end of file
+}