diff --git a/data/conf/dovecot/dovecot.conf b/data/conf/dovecot/dovecot.conf
index 70c84faf..80c704e7 100644
--- a/data/conf/dovecot/dovecot.conf
+++ b/data/conf/dovecot/dovecot.conf
@@ -336,6 +336,10 @@ service managesieve-login {
   inet_listener sieve {
     port = 4190
   }
+  inet_listener sieve_haproxy {
+    port = 14190
+    haproxy = yes
+  }
   service_count = 1
   process_min_avail = 2
   vsz_limit = 1G
diff --git a/helper-scripts/docker-compose.override.yml.d/HAPROXY/docker-compose.override.yml b/helper-scripts/docker-compose.override.yml.d/HAPROXY/docker-compose.override.yml
index 9ebe4e96..21d391b8 100644
--- a/helper-scripts/docker-compose.override.yml.d/HAPROXY/docker-compose.override.yml
+++ b/helper-scripts/docker-compose.override.yml.d/HAPROXY/docker-compose.override.yml
@@ -11,6 +11,7 @@ services:
         - "${IMAPS_PORT_HAPROXY:-127.0.0.1:10993}:10993"
         - "${POP_PORT_HAPROXY:-127.0.0.1:10110}:10110"
         - "${POPS_PORT_HAPROXY:-127.0.0.1:10995}:10995"
+        - "${SIEVE_PORT_HAPROXY:-127.0.0.1:14190}:14190"
 
     postfix-mailcow:
       ports: