diff --git a/manifest.json b/manifest.json
index 08388b3..e1fb316 100644
--- a/manifest.json
+++ b/manifest.json
@@ -5,7 +5,7 @@
     "description": {
         "en": "Video streaming platform using P2P directly in the web browser, connected to a federated network"
     },
-    "version": "1.0.0-beta.3-1",
+    "version": "1.0.0-beta.3-2",
     "url": "https://github.com/Chocobozzz/PeerTube",
     "license": "AGPL-3.0-only",
     "maintainer": {
diff --git a/scripts/install b/scripts/install
index a08cdc3..e1fdd91 100644
--- a/scripts/install
+++ b/scripts/install
@@ -69,7 +69,8 @@ ynh_app_setting_set "$app" is_public "$is_public"
 #=================================================
 
 # Find a free port
-port=$(ynh_find_port "9000")
+port=$(ynh_find_port 9000)
+
 # Open this port
 yunohost firewall allow Both "$port" 2>&1
 ynh_app_setting_set "$app" port "$port"
@@ -100,7 +101,7 @@ echo "deb http://httpredir.debian.org/debian jessie-backports main" | tee /etc/a
 ynh_package_update
 
 # install postgresql, ffmpeg, redis
-ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools
+ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools mailutils
 
 #=================================================
 # DATABASE SETUP
diff --git a/scripts/restore b/scripts/restore
index 5e8effa..fad985e 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -104,7 +104,7 @@ echo "deb http://httpredir.debian.org/debian jessie-backports main" | tee /etc/a
 ynh_package_update
 
 # Define and install dependencies
-ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools
+ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools mailutils
 
 #=================================================
 # RESTORE THE PostgreSQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index 1ede0e7..3288e91 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -92,7 +92,7 @@ echo "deb http://httpredir.debian.org/debian jessie-backports main" | tee /etc/a
 ynh_package_update
 
 # install postgresql, ffmpeg, redis
-ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools
+ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools mailutils
 
 #=================================================
 # CHECK THE PATH