diff --git a/.env-example b/.env-example
index 3606ea1..8a33f81 100644
--- a/.env-example
+++ b/.env-example
@@ -1,11 +1,12 @@
 DB_ROOT_PASSWORD=root
 DB_USER=user
 DB_USER_PASSWORD=user
-DOCKER_PREFIX=wptest
-MOUNT_USER=whoami
+DOCKER_PREFIX=
+MOUNT_USER=
 WP_ADMIN_PASSWORD=admin
 WP_ADMIN_USERNAME=admin
+WP_DEFAULT_PROTOCOL=https
 WP_LOCALE=fr_FR
 WP_THEME=twentyseventeen
-WP_URL=https://www.wptest.localhost
+WP_URL=
 WP_VERSION=5.4
diff --git a/create.sh b/create.sh
index dc39fca..e8ef798 100755
--- a/create.sh
+++ b/create.sh
@@ -60,7 +60,7 @@ docker exec --user www-data $DOCKER_PREFIX-web /bin/sh -c "
         --path=/var/www/html \
         --skip-email \
         --title=$DOCKER_PREFIX \
-        --url=https://$WP_URL";
+        --url=$WP_DEFAULT_PROTOCOL://$WP_URL";
 
 echo "Installing WordPress $WP_THEME theme";
 docker exec --user www-data $DOCKER_PREFIX-web /bin/sh -c "
diff --git a/root.sh b/root.sh
index 8f5e638..bf23d95 100755
--- a/root.sh
+++ b/root.sh
@@ -5,4 +5,4 @@ set -o allexport;
 source .env;
 set +o allexport
 
-docker exec -it --user root $PREFIX-web /bin/bash
+docker exec -it --user root $DOCKER_PREFIX-web /bin/bash
diff --git a/wp.sh b/wp.sh
index dad4ed4..6afab56 100755
--- a/wp.sh
+++ b/wp.sh
@@ -5,4 +5,4 @@ set -o allexport;
 source .env;
 set +o allexport
 
-docker exec -it --user www-data $PREFIX-web /bin/bash
+docker exec -it --user www-data $DOCKER_PREFIX-web /bin/bash