diff --git a/rootfs/etc/confd/templates/dovecot-oauth2.conf.ext.tmpl b/rootfs/etc/confd/templates/dovecot-oauth2.conf.ext.tmpl
index cc0a686..fbcbf25 100644
--- a/rootfs/etc/confd/templates/dovecot-oauth2.conf.ext.tmpl
+++ b/rootfs/etc/confd/templates/dovecot-oauth2.conf.ext.tmpl
@@ -9,3 +9,4 @@ username_attribute = email
 tls_ca_cert_file = /etc/ssl/certs/ca-certificates.crt
 use_grant_password = yes
 pass_attrs = host=127.0.0.1 proxy=y proxy_mech=xoauth2 pass=%{oauth2:access_token}
+debug = yes