diff --git a/data/conf/dovecot/dovecot.conf b/data/conf/dovecot/dovecot.conf
index 0635b14d..e13701d6 100644
--- a/data/conf/dovecot/dovecot.conf
+++ b/data/conf/dovecot/dovecot.conf
@@ -220,7 +220,6 @@ plugin {
   sieve_max_actions = 101
   sieve_quota_max_scripts = 0
   sieve_quota_max_storage = 0
-  listescape_char = "\\"
   sieve_vacation_min_period = 5s
   sieve_vacation_max_period = 0
   sieve_vacation_default_period = 60s