diff --git a/src/index.js b/src/index.js
index fe6fe274cf82374d7ac3659a2d2b7b7081630516..8539428800bc3651c519d89cad5d14986d9b42ee 100644
--- a/src/index.js
+++ b/src/index.js
@@ -70,7 +70,11 @@ Sentry.init({
   tracesSampleRate: 1.0,
   release: version,
   environment: isDev() ? 'development' : 'production',
-  debug: true,
+  debug: isDev(),
+  integrations: [
+    // enable HTTP calls tracing
+    new Sentry.Integrations.Http({ tracing: true }),
+  ],
 })
 
 /**
@@ -196,6 +200,7 @@ async function start(fields, cozyParameters) {
       expirationDate: contractEndDate,
       inseeCode: user.inseeCode,
     })
+    // firstStartTransaction.finish()
   } else {
     log('info', 'Alternate start...')
     Sentry.captureMessage('Alternate start')