diff --git a/src/index.js b/src/index.js
index f2983120359becf6fd8e06162e7b83bc738b5ffb..d2faeafa2153af807169b3bdae34ade00bf73e5a 100755
--- a/src/index.js
+++ b/src/index.js
@@ -158,6 +158,12 @@ function buildGetDataUrl(idPCE, startDate, endDate) {
   return `${baseUrl}/${idPCE}/donnees_consos_informatives?${queryParams}`
 }
 
+/**
+ * @param {string} token
+ * @param {string} idPCE
+ * @param {string} startDate 'YYYY-MM-DD'
+ * @param {string} endDate 'YYYY-MM-DD'
+ */
 async function getData(token, idPCE, startDate, endDate) {
   log('debug', `getData from ${startDate} to ${endDate}`)
   const url = buildGetDataUrl(idPCE, startDate, endDate)