diff --git a/patches/00-installto-opts.patch b/patches/00-installto-opts.patch
index 5c66498..8c54bd6 100644
--- a/patches/00-installto-opts.patch
+++ b/patches/00-installto-opts.patch
@@ -1,21 +1,11 @@
---- a/bin/installto.sh	2016-03-30 15:46:11.686447589 +0200
-+++ b/bin/installto.sh	2016-03-30 15:49:27.184064426 +0200
-@@ -23,6 +23,9 @@
- 
- require_once INSTALL_PATH . 'program/include/clisetup.php';
- 
-+// get arguments
-+$opts = rcube_utils::get_opt(array('f' => 'force', 'y' => 'accept'));
-+
- $target_dir = unslashify($_SERVER['argv'][1]);
- 
- if (empty($target_dir) || !is_dir(realpath($target_dir)))
-@@ -35,13 +38,15 @@
+--- a/bin/installto.sh
++++ b/bin/installto.sh
+@@ -38,13 +38,15 @@ if (!preg_match('/define\(.RCMAIL_VERSION.,\s*.([0-9.]+[a-z-]*)/', $iniset, $m))
  
  $oldversion = $m[1];
  
 -if (version_compare(version_parse($oldversion), version_parse(RCMAIL_VERSION), '>='))
-+if (version_compare(version_parse($oldversion), version_parse(RCMAIL_VERSION), '>=') && !opts['force'])
++if (version_compare(version_parse($oldversion), version_parse(RCMAIL_VERSION), '>=') && !opts['force'])  
    rcube::raise_error("Installation at target location is up-to-date!", false, true);
  
 -echo "Upgrading from $oldversion. Do you want to continue? (y/N)\n";
@@ -27,19 +17,19 @@
  
 -if (strtolower($input) == 'y') {
 +if ($opts['accept'] || strtolower($input) == 'y') {
-   $err = false;
    echo "Copying files to target location...";
-   $dirs = array('program','installer','bin','SQL','plugins','skins');
-@@ -77,7 +82,11 @@
  
-   if (!$err) {
-     echo "Running update script at target...\n";
--    system("cd $target_dir && php bin/update.sh --version=$oldversion");
-+    $command = "cd $target_dir && php bin/update.sh --version=$oldversion";
-+    if ($opts['accept']) {
-+      $command .= " --accept";
-+    }
-+    system($command);
-     echo "All done.\n";
+   // Save a copy of original .htaccess file (#1490623)
+@@ -99,7 +101,11 @@ if (strtolower($input) == 'y') {
    }
+ 
+   echo "Running update script at target...\n";
+-  system("cd $target_dir && php bin/update.sh --version=$oldversion");
++  $command = "cd $target_dir && php bin/update.sh --version=$oldversion";
++  if ($opts['accept']) {
++      $command .= " --accept";
++  }
++  system($command);
+   echo "All done.\n";
  }
+ else {
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 2bea361..fd56e57 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -17,6 +17,14 @@ ROUNDCUBE_SOURCE_URL="https://github.com/roundcube/roundcubemail/releases/downlo
 # App package root directory should be the parent folder
 PKGDIR=$(cd ../; pwd)
 
+QUIET () {  # Redirect standard out into /dev/null
+  $@ > /dev/null
+}
+
+WARNING () {  # Writes on the error channel to go into warning.
+  eval "$@" >&2
+}
+
 #
 # Common helpers
 #
@@ -37,9 +45,9 @@ extract_roundcube() {
   sudo rm "$rc_tarball"
 
   # apply patches
-  # (cd "$DESTDIR" \
-  #  && for p in ${PKGDIR}/patches/*.patch; do patch -p1 < $p; done) \
-  #   || ynh_die "Unable to apply patches to Roundcube"
+  (cd "$DESTDIR" \
+   && for p in ${PKGDIR}/patches/*.patch; do patch -p1 < $p; done) \
+    || ynh_die "Unable to apply patches to Roundcube"
 
   # copy composer.json-dist for Roundcube with complete dependencies
   sudo cp "${PKGDIR}/sources/composer.json-dist" "${DESTDIR}/composer.json-dist"
diff --git a/scripts/install b/scripts/install
index e4d11b1..99659cc 100644
--- a/scripts/install
+++ b/scripts/install
@@ -7,15 +7,16 @@ set -eu
 source ./_common.sh
 source /usr/share/yunohost/helpers
 
+app=$YNH_APP_INSTANCE_NAME
+
 # Retrieve arguments
 domain=$YNH_APP_ARG_DOMAIN
 path=$(ynh_normalize_url_path $YNH_APP_ARG_PATH)
 with_carddav=$YNH_APP_ARG_WITH_CARDDAV
 
-app=$YNH_APP_INSTANCE_NAME
-
 # Check domain/path availability
-sudo yunohost app checkurl "${domain}${path}" -a "$app"
+sudo yunohost app checkurl "${domain}${path}" -a "$app" \
+    || ynh_die "Path not available: ${domain}${path}"
 
 # Set app specific variables
 dbname=$app
@@ -24,9 +25,6 @@ dbuser=$app
 deskey=$(ynh_string_random 24)
 dbpass=$(ynh_string_random)
 
-# Check domain/path availability
-sudo yunohost app checkurl "${domain}${path}" -a "$app"
-
 # Save app settings
 ynh_app_setting_set $app domain $domain
 ynh_app_setting_set $app path $path
diff --git a/scripts/upgrade b/scripts/upgrade
index 91b93a6..0b9a8c4 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -68,10 +68,9 @@ ynh_substitute_char "#DBNAME#" "$dbname" "$rc_conf"
 
 # Install files and set permissions
 sudo mkdir -p "${final_path}/logs" "${final_path}/temp"
-sudo chown -R $app: "${final_path}"
 
 # Check if dependencies need to be updated with composer
-if [[ -f ${DESTDIR}/composer.json ]]; then
+if [[ -f ${final_path}/composer.json ]]; then
   exec_composer admin "${final_path}" update --no-dev --prefer-dist
 else
   init_composer "${final_path}" admin
@@ -80,7 +79,7 @@ fi
 # Install some plugins manually
 sudo rm -rf "${final_path}/plugins/ldapAliasSync"
 sudo cp -r ../sources/plugins/ldapAliasSync "${final_path}/plugins"
-sudo chown -R $app: "${final_path}/plugins/ldapAliasSync"
+# sudo chown -R $app: "${final_path}/plugins/ldapAliasSync"
 installed_plugins=" 'ldapAliasSync',"
 
 # Update or install additional plugins
@@ -108,6 +107,9 @@ fi
 sudo sed -i "s#^\s*// installed plugins#&\n ${installed_plugins}#" \
     "$rc_conf"
 
+# Owner user app
+sudo chown -R $app: "${final_path}"
+
 # Modify Nginx configuration file and copy it to Nginx conf directory
 ynh_nginx_config
 
@@ -115,5 +117,4 @@ ynh_nginx_config
 ynh_fpm_config
 
 # Reload services
-sudo systemctl restart php5-fpm
 sudo systemctl reload nginx