diff --git a/conf/nginx.conf b/conf/nginx.conf
index 3aad432..8642d49 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -15,7 +15,7 @@ location __PATH__ {
         proxy_set_header	X-Forwarded-For	$proxy_add_x_forwarded_for;
         proxy_set_header	X-Scheme				$scheme;
         proxy_set_header	X-Script-Name		__PATH__;
-#        proxy_set_header	X-Remote-User		$remote_user;
+#       proxy_set_header	X-Remote-User		$remote_user;
         
   # Include SSOWAT user panel.
   include conf.d/yunohost_panel.conf.inc;
diff --git a/hooks/post_app_addaccess b/hooks/post_app_addaccess
new file mode 100644
index 0000000..b2e7581
--- /dev/null
+++ b/hooks/post_app_addaccess
@@ -0,0 +1,19 @@
+#!/bin/bash
+# Source YunoHost helpers
+source /usr/share/yunohost/helpers
+
+app=$1
+users=$2
+permission=$3
+group=$4
+
+#Si le groupe visitors a été affecté à calibreweb
+if echo "$group" | grep visitors ; then
+	if tail /etc/yunohost/apps/$app/conf/nginx.conf | grep "        proxy_set_header	X-Remote-User"; then
+		#app is made public
+		domain=$(ynh_app_setting_get --app=$app --key=domain)
+		ynh_replace_string --match_string="        proxy_set_header	X-Remote-User" --replace_string="#       proxy_set_header	X-Remote-User" --target_file="/etc/yunohost/apps/$app/conf/nginx.conf"
+		ynh_add_config --template="/etc/yunohost/apps/$app/conf/nginx.conf" --destination="/etc/nginx/conf.d/$domain.d/$app.conf"
+		ynh_systemd_action --service_name=nginx --action=reload
+	fi
+fi
\ No newline at end of file
diff --git a/hooks/post_app_removeaccess b/hooks/post_app_removeaccess
new file mode 100644
index 0000000..3250b25
--- /dev/null
+++ b/hooks/post_app_removeaccess
@@ -0,0 +1,18 @@
+#!/bin/bash
+# Source YunoHost helpers
+source /usr/share/yunohost/helpers
+
+app=$1
+users=$2
+permission=$3
+group=$4
+
+if echo "$group" | grep visitors; then
+	if tail /etc/yunohost/apps/$app/conf/nginx.conf | grep "#       proxy_set_header	X-Remote-User"; then
+		#app is made public
+		domain=$(ynh_app_setting_get --app=$app --key=domain)
+		ynh_replace_string --match_string="#       proxy_set_header	X-Remote-User" --replace_string="        proxy_set_header	X-Remote-User" --target_file="/etc/yunohost/apps/$app/conf/nginx.conf"
+		ynh_add_config --template="/etc/yunohost/apps/$app/conf/nginx.conf" --destination="/etc/nginx/conf.d/$domain.d/$app.conf"
+		ynh_systemd_action --service_name=nginx --action=reload
+	fi
+fi
\ No newline at end of file