diff --git a/lib/jsonb.js b/lib/jsonb.js
index 647f0cc..b1b35dc 100644
--- a/lib/jsonb.js
+++ b/lib/jsonb.js
@@ -22,7 +22,7 @@ export function parse(s) {
   return parseJson(s, reviver)
 }
 
-function stringify(data) {
+export function stringify(data) {
   if (data === undefined) return undefined
   if (data === null) return 'null'
   if (Number.isNaN(data)) return 'null'