diff --git a/.env.example b/.env.example
index 0033bc2..d8b2ff7 100644
--- a/.env.example
+++ b/.env.example
@@ -3,4 +3,5 @@ VUE_APP_CSP_HOSTS="*.saferwall.com saferwall.com"
 
 VUE_APP_BASE_URI="https://saferwall.com/"
 VUE_APP_API_BASE_URL="https://api.saferwall.com/v1/"
-VUE_APP_AVATAR_BASE_URL="https://avatar.saferwall.com/"
\ No newline at end of file
+VUE_APP_AVATAR_BASE_URL="https://avatar.saferwall.com/"
+NGINX_HTTP_PORT="80"
\ No newline at end of file
diff --git a/entrypoint.sh b/entrypoint.sh
index 7f97508..57dc81c 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -23,6 +23,11 @@ done
 NGINX_CONF_FILE="/etc/nginx/conf.d/default.conf"
 INDEX_HTML_FILE="/usr/share/nginx/html/index.html";
 
+# Change default NGINX listen port if NGINX_HTTP_PORT env is set
+if [[ -v "${NGINX_HTTP_PORT}" ]]; then
+  sed -i "s~listen 80~listen $NGINX_HTTP_PORT~g" $NGINX_CONF_FILE
+  sed -i "s~listen \[\:\:\]\:80~listen [::]:$NGINX_HTTP_PORT~g" $NGINX_CONF_FILE
+fi
 
 # api url csp
 sed -i "s~connect-src~connect-src $VUE_APP_BASE_URI~g" $NGINX_CONF_FILE