diff --git a/playbooks/proxy.yml b/playbooks/proxy.yml
index 3d03d9a..89f7a53 100644
--- a/playbooks/proxy.yml
+++ b/playbooks/proxy.yml
@@ -107,6 +107,7 @@
         - https://sane02.home.foo.sh/scanservjs/
     - role: nginx_site
       nginx_site_name: webmail.foo.sh
+      nginx_site_load_balance_method: ip_hash
       nginx_site_proxy:
         - https://oci-node01.home.foo.sh/roundcube/
         - https://oci-node02.home.foo.sh/roundcube/