diff --git a/alpine/Dockerfile b/alpine/Dockerfile
index aca8c09..12fa1a9 100644
--- a/alpine/Dockerfile
+++ b/alpine/Dockerfile
@@ -35,15 +35,18 @@ apk add \
    php7-mbstring \
    php7-simplexml \
    php7-iconv \
-   php7-sodium
+   php7-sodium \
+   php7-phar
 
 COPY CAS-1.3.8.tgz /root/
-RUN pear install /root/CAS-1.3.8.tgz
+RUN pear install /root/CAS-1.3.8.tgz && \
+pear install Archive_Tar
 COPY httpd.conf /etc/apache2
 COPY service/ /etc/service/
 COPY glpi_init.sh /root/glpi_init.sh
 COPY glpi.cron /var/spool/cron/crontabs/apache
 COPY initrc /etc/
+COPY glpi_ticket.class.php.patch /root/
 ADD https://github.com/glpi-project/glpi/releases/download/${GLPI_VERSION}/glpi-${GLPI_VERSION}.tgz /root/glpi-${GLPI_VERSION}.tgz
 ADD https://github.com/fusioninventory/fusioninventory-for-glpi/releases/download/glpi${FUSIONINVENTORY_VERSION}/fusioninventory-${FUSIONINVENTORY_VERSION}.tar.bz2 /root/fusioninventory-${FUSIONINVENTORY_VERSION}.tar.bz2
 
diff --git a/alpine/glpi_init.sh b/alpine/glpi_init.sh
index 0ffac07..572eba1 100644
--- a/alpine/glpi_init.sh
+++ b/alpine/glpi_init.sh
@@ -51,6 +51,7 @@ EOF
 	php bin/console glpi:plugin:activate fusioninventory -n
 	rm install/install.php
 	chown -R apache:apache /var/www/glpi /etc/glpi /var/lib/glpi /var/log/glpi
+	patch -Np0 -i /root/glpi_ticket.class.php.patch
 	msglog green "Initialazing complete..."
 else
 	msglog green "GLPI is already initialized"
@@ -76,4 +77,6 @@ else
 	php bin/console db:update --config-dir=${GLPI_CONFIG_DIR} -n
 	php bin/console glpi:maintenance:disable -n
 	chown -R apache:apache /var/www/glpi /etc/glpi /var/lib/glpi /var/log/glpi
+	patch -Np0 -i /root/glpi_ticket.class.php.patch
+
 fi
diff --git a/alpine/glpi_ticket.class.php.patch b/alpine/glpi_ticket.class.php.patch
new file mode 100644
index 0000000..632af8c
--- /dev/null
+++ b/alpine/glpi_ticket.class.php.patch
@@ -0,0 +1,19 @@
+--- inc/ticket.class.php.old	2020-07-16 14:26:59.000000000 +0200
++++ inc/ticket.class.php	2020-09-11 18:09:43.200657894 +0200
+@@ -3806,7 +3806,7 @@
+          }
+       }
+ 
+-      if (empty($delegating)
++/**      if (empty($delegating)
+           && NotificationTargetTicket::isAuthorMailingActivatedForHelpdesk()) {
+          echo "<tr class='tab_bg_1'>";
+          echo "<td>".__('Inform me about the actions taken')."</td>";
+@@ -3821,6 +3821,7 @@
+ 
+          echo "</td></tr>";
+       }
++*/
+       if (($_SESSION["glpiactiveprofile"]["helpdesk_hardware"] != 0)
+           && (count($_SESSION["glpiactiveprofile"]["helpdesk_item_type"]))) {
+          if (!$tt->isHiddenField('items_id')) {