diff --git a/scripts/install b/scripts/install
index bfac61b..7b143d1 100755
--- a/scripts/install
+++ b/scripts/install
@@ -16,6 +16,10 @@ admin_mail=$(ynh_user_get_info --username=$admin --key=mail)
 ynh_app_setting_set --app=$app --key=crypto_random --value=$crypto_random
 ynh_app_setting_set --app=$app --key=web_api_password --value=$web_api_password
 
+# key for the .env __KEY__
+key=$(ynh_string_random --length=45 | base64)
+ynh_app_setting_set --app=$app --key=key --value=$key
+
 #=================================================
 # STANDARD MODIFICATIONS
 #=================================================