diff --git a/roles/mailserver_dovecot/tasks/main.yml b/roles/mailserver_dovecot/tasks/main.yml
index b06e91b..9c44314 100644
--- a/roles/mailserver_dovecot/tasks/main.yml
+++ b/roles/mailserver_dovecot/tasks/main.yml
@@ -192,3 +192,12 @@
     - Junk
     - Trash
   notify: Reload dovecot service
+
+- name: Add imap_sieve plugin
+  become: true
+  ansible.builtin.lineinfile:
+    path: /etc/dovecot/conf.d/20-imap.conf
+    regexp: '^(\s*)#?mail_plugins =.*'
+    backrefs: true
+    line: '\1mail_plugins = $mail_plugins quota imap_sieve'
+  notify: Reload dovecot service