diff --git a/jigasi.yml b/jigasi.yml
index b50ab71..1ec2e06 100644
--- a/jigasi.yml
+++ b/jigasi.yml
@@ -13,6 +13,7 @@ services:
         environment:
             - ENABLE_AUTH
             - XMPP_AUTH_DOMAIN
+            - XMPP_MUC_DOMAIN
             - XMPP_INTERNAL_MUC_DOMAIN
             - XMPP_SERVER
             - XMPP_DOMAIN
diff --git a/jigasi/rootfs/defaults/sip-communicator.properties b/jigasi/rootfs/defaults/sip-communicator.properties
index 9ac45fc..cf3901f 100644
--- a/jigasi/rootfs/defaults/sip-communicator.properties
+++ b/jigasi/rootfs/defaults/sip-communicator.properties
@@ -142,3 +142,5 @@ org.jitsi.jigasi.transcription.SEND_TXT={{ .Env.JIGASI_TRANSCRIBER_SEND_TXT | de
 org.jitsi.jigasi.transcription.RECORD_AUDIO={{ .Env.JIGASI_TRANSCRIBER_RECORD_AUDIO | default "false"}}
 org.jitsi.jigasi.transcription.RECORD_AUDIO_FORMAT=wav
 {{end}}
+
+org.jitsi.jigasi.MUC_SERVICE_ADDRESS={{ .Env.XMPP_MUC_DOMAIN }}