diff --git a/docker-compose.yml b/docker-compose.yml
index 6f7f8f8..ef522a2 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,6 +19,7 @@ services:
       - |
         echo 'mech_list: plain' > "$$SASL_CONF_PATH"
         echo "zulip@$$HOSTNAME:$$MEMCACHED_PASSWORD" > "$$MEMCACHED_SASL_PWDB"
+        echo "zulip@localhost:$$MEMCACHED_PASSWORD" >> "$$MEMCACHED_SASL_PWDB"
         exec memcached -S
     environment:
       SASL_CONF_PATH: '/home/memcache/memcached.conf'