diff --git a/docker-compose.yml b/docker-compose.yml
index f8b3d45..ab524e5 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,6 +19,7 @@ services:
             - AUDIO_QUALITY_OPUS_BITRATE
             - AUTO_CAPTION_ON_RECORD
             - BRANDING_DATA_URL
+            - BOSH_RELATIVE
             - CALLSTATS_CUSTOM_SCRIPT_URL
             - CALLSTATS_ID
             - CALLSTATS_SECRET
diff --git a/web/rootfs/defaults/system-config.js b/web/rootfs/defaults/system-config.js
index 2d6f8d0..5dbe4b2 100644
--- a/web/rootfs/defaults/system-config.js
+++ b/web/rootfs/defaults/system-config.js
@@ -1,3 +1,4 @@
+{{ $BOSH_RELATIVE := .Env.BOSH_RELATIVE | default "false" | toBool -}}
 {{ $CONFIG_EXTERNAL_CONNECT := .Env.CONFIG_EXTERNAL_CONNECT | default "false" | toBool -}}
 {{ $ENABLE_AUTH := .Env.ENABLE_AUTH | default "false" | toBool -}}
 {{ $ENABLE_AUTH_DOMAIN := .Env.ENABLE_AUTH_DOMAIN | default "true" | toBool -}}
@@ -44,7 +45,19 @@ config.hosts.authdomain = '{{ $XMPP_DOMAIN }}';
 {{ end -}}
 {{ end -}}
 
+{{ if $BOSH_RELATIVE -}}
+{{ if $ENABLE_SUBDOMAINS -}}
+config.bosh = '/'+ subdir + 'http-bind';
+{{ else -}}
 config.bosh = '/http-bind';
+{{ end -}}
+{{ else -}}
+{{ if $ENABLE_SUBDOMAINS -}}
+config.bosh = 'https://{{ $PUBLIC_URL_DOMAIN}}/' + subdir + 'http-bind';
+{{ else -}}
+config.bosh = 'https://{{ $PUBLIC_URL_DOMAIN}}/http-bind';
+{{ end -}}
+{{ end -}}
 
 {{ if $ENABLE_XMPP_WEBSOCKET -}}
 {{ if $ENABLE_SUBDOMAINS -}}