diff --git a/htdocs/core/modules/syslog/mod_syslog_sentry.php b/htdocs/core/modules/syslog/mod_syslog_sentry.php
index 5edcca9e03e..cc0bafa568b 100644
--- a/htdocs/core/modules/syslog/mod_syslog_sentry.php
+++ b/htdocs/core/modules/syslog/mod_syslog_sentry.php
@@ -18,6 +18,8 @@
  */
 
 require_once DOL_DOCUMENT_ROOT . '/core/modules/syslog/logHandler.php';
+require_once DOL_DOCUMENT_ROOT . '/includes/raven/raven/lib/Raven/Autoloader.php';
+Raven_Autoloader::register();
 
 /**
  * Class to manage logging to Sentry