diff --git a/docker-compose.yaml b/docker-compose.yaml
index 23fadbc..cf23174 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -16,6 +16,7 @@ services:
       TUWUNEL_REGISTRATION_TOKEN: "614f27b3a91e8c0456c9d82e7af0f58b"
       TUWUNEL_ALLOW_FEDERATION: "true"
       TUWUNEL_SHOW_ALL_LOCAL_USERS_IN_USER_DIRECTORY: "true"
+      TUWUNEL_NEW_USER_DISPLAYNAME_SUFFIX: ""
       TUWUNEL_TRUSTED_SERVERS: "[\"matrix.org\"]"
     volumes:
       - tuwunel-db:/var/lib/tuwunel
diff --git a/docker-compose.yml b/docker-compose.yml
index 23fadbc..cf23174 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -16,6 +16,7 @@ services:
       TUWUNEL_REGISTRATION_TOKEN: "614f27b3a91e8c0456c9d82e7af0f58b"
       TUWUNEL_ALLOW_FEDERATION: "true"
       TUWUNEL_SHOW_ALL_LOCAL_USERS_IN_USER_DIRECTORY: "true"
+      TUWUNEL_NEW_USER_DISPLAYNAME_SUFFIX: ""
       TUWUNEL_TRUSTED_SERVERS: "[\"matrix.org\"]"
     volumes:
       - tuwunel-db:/var/lib/tuwunel