diff --git a/docs/jitsi.md b/docs/jitsi.md
index 78ab82c..d8473c8 100644
--- a/docs/jitsi.md
+++ b/docs/jitsi.md
@@ -7,3 +7,11 @@ ports:
 
 jitsi_domain: 'jitsi.domain.tld'
 ```
+
+These vars are optional:
+
+```
+# for TURN, no turn server is used if not defined
+turn_domain: turn.domain.tld
+turn_secret: secret
+```
diff --git a/galaxy.yml b/galaxy.yml
index b080012..2ffa823 100644
--- a/galaxy.yml
+++ b/galaxy.yml
@@ -2,7 +2,7 @@
 
 namespace: uumas
 name: docker
-version: 0.5.3
+version: 0.5.4
 readme: README.md
 repository: https://git.uumas.fi/uumas/ansible-docker
 license_file: LICENSE
diff --git a/roles/jitsi/tasks/main.yml b/roles/jitsi/tasks/main.yml
index 947c53c..9cfc243 100644
--- a/roles/jitsi/tasks/main.yml
+++ b/roles/jitsi/tasks/main.yml
@@ -69,6 +69,11 @@
       JICOFO_AUTH_PASSWORD: "{{ jitsi_pw.jicofo_auth }}"
       JVB_AUTH_USER: jvb
       JVB_AUTH_PASSWORD: "{{ jitsi_pw.jvb_auth }}"
+      TURN_CREDENTIALS: "{{ turn_secret | default(omit) }}"
+      TURN_HOST: "{{ turn_domain | default(omit) }}"
+      TURN_PORT: "{{ '443' if turn_domain is defined else omit }}"
+      TURNS_HOST: "{{ turn_domain | default(omit) }}"
+      TURNS_PORT: "{{ '443' if turn_domain is defined else omit }}"
       XMPP_DOMAIN: meet.jitsi
       XMPP_AUTH_DOMAIN: auth.meet.jitsi
       XMPP_INTERNAL_MUC_DOMAIN: internal-muc.meet.jitsi