diff --git a/index.js b/index.js
index d9dc9e848f0c6b89753d17c6774b0ed85f036533..d4a8280e42c37da315dd18afa64912dadbbbeabc 100644
--- a/index.js
+++ b/index.js
@@ -218,6 +218,8 @@ async function start(fields, cozyParameters) {
     boBaseUrl = fields.boBaseUrl
   }
   const boUrlGRDF = new URL('/api/grdf', boBaseUrl).href
+  log('debug', `BOURLGRDF`)
+  log('debug', boUrlGRDF)
 
   try {
     const { access_token } = await getAuthToken(grdfId, grdfSecret)