diff --git a/docker/entrypoint.sh b/docker/entrypoint.sh
index 3ef4d3d..46fe498 100644
--- a/docker/entrypoint.sh
+++ b/docker/entrypoint.sh
@@ -53,7 +53,8 @@ fi
 
 # Allow selection of Apache port for network_mode: host
 if [ "$WEBPORT" != "80" ]; then
-  sed -i "s/80/$WEBPORT/g" /etc/apache2/sites-available/000-default.conf /etc/apache2/ports.conf
+  sed -i "s/^Listen 80\$/Listen $WEBPORT/g" /etc/apache2/ports.conf
+  sed -i "s/*:80>/*:$WEBPORT>/g" /etc/apache2/sites-available/000-default.conf 
 fi