diff --git a/manifest.toml b/manifest.toml
index 692685d..9cd48fd 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -48,6 +48,13 @@ ram.runtime = "512M"
     type = "group"
     default = "visitors"
 
+    [install.language]
+    ask.en = "Choose the application language"
+    ask.fr = "Choisissez la langue de l'application"
+    type = "select"
+    choices = ["en_US", "es_ES", "it_IT", "fr_FR", "de_DE"]
+    default = "en_US"
+
     [install.user_home]
     ask.en = "Access the users home folder from Nextcloud?"
     ask.fr = "Accéder au dossier personnel des utilisateurs depuis Nextcloud ?"
diff --git a/scripts/install b/scripts/install
index 2df768a..e1e81b3 100755
--- a/scripts/install
+++ b/scripts/install
@@ -96,7 +96,18 @@ ynh_script_progression --message="Configuring $app..." --weight=8
 # Set the mysql.utf8mb4 config to true in config.php
 exec_occ config:system:set mysql.utf8mb4 --type boolean --value="true"
 
-# move the logs from the data_dir to the standard /var/log
+# Set default language in config.php
+raw_language=$(echo "$language" | awk -F'_' '{print $1}')
+exec_occ config:system:set default_language --value="$raw_language"
+
+# Set default locale in config.php
+exec_occ config:system:set default_locale --value="$language"
+
+# Set default phone region in config.php
+country=$(echo "$language" | awk -F'_' '{print $2}')
+exec_occ config:system:set default_phone_region --value="$country"
+
+# Move the logs from the data_dir to the standard /var/log
 exec_occ config:system:set logfile --value="/var/log/$app/nextcloud.log"
 
 # Ensure that UpdateNotification app is disabled