diff --git a/linux-amd64.Dockerfile b/linux-amd64.Dockerfile
index b8715e50c..1c822e37f 100644
--- a/linux-amd64.Dockerfile
+++ b/linux-amd64.Dockerfile
@@ -3,6 +3,7 @@ ARG UPSTREAM_DIGEST_AMD64
 
 FROM ${UPSTREAM_IMAGE}@${UPSTREAM_DIGEST_AMD64}
 EXPOSE 6767
+ENV WEBUI_PORTS="6767/tcp,6767/udp"
 
 RUN apk add --no-cache mediainfo ffmpeg python3 py3-lxml py3-numpy py3-gevent py3-cryptography py3-setuptools py3-psycopg2 py3-pillow unzip && \
     apk add --no-cache --virtual=build-dependencies py3-pip gcc python3-dev musl-dev && \
diff --git a/linux-arm64.Dockerfile b/linux-arm64.Dockerfile
index d14f3265e..b78875a7a 100644
--- a/linux-arm64.Dockerfile
+++ b/linux-arm64.Dockerfile
@@ -3,6 +3,7 @@ ARG UPSTREAM_DIGEST_ARM64
 
 FROM ${UPSTREAM_IMAGE}@${UPSTREAM_DIGEST_ARM64}
 EXPOSE 6767
+ENV WEBUI_PORTS="6767/tcp,6767/udp"
 
 RUN apk add --no-cache mediainfo ffmpeg python3 py3-lxml py3-numpy py3-gevent py3-cryptography py3-setuptools py3-psycopg2 py3-pillow unzip && \
     apk add --no-cache --virtual=build-dependencies py3-pip gcc python3-dev musl-dev && \
diff --git a/root/etc/s6-overlay/s6-rc.d/init-setup-app/run b/root/etc/s6-overlay/s6-rc.d/init-setup-app/run
index 646fbe8c8..c47cb7d2e 100644
--- a/root/etc/s6-overlay/s6-rc.d/init-setup-app/run
+++ b/root/etc/s6-overlay/s6-rc.d/init-setup-app/run
@@ -7,6 +7,6 @@ echo "
 ----------------------------------------------------------------------
 ENVIRONMENT APP
 ----------------------------------------------------------------------
-
+WEBUI_PORTS=${WEBUI_PORTS}
 ----------------------------------------------------------------------
 "
diff --git a/root/etc/s6-overlay/s6-rc.d/service-bazarr/run b/root/etc/s6-overlay/s6-rc.d/service-bazarr/run
index e14c4b980..dac003f34 100644
--- a/root/etc/s6-overlay/s6-rc.d/service-bazarr/run
+++ b/root/etc/s6-overlay/s6-rc.d/service-bazarr/run
@@ -3,4 +3,4 @@
 
 umask "${UMASK}"
 
-exec s6-setuidgid hotio python3 "${APP_DIR}/bin/bazarr.py" --no-update --config "${CONFIG_DIR}"
+exec s6-setuidgid hotio python3 "${APP_DIR}/bin/bazarr.py" --no-update --config "${CONFIG_DIR}" --port "${WEBUI_PORTS%%/*}"