diff --git a/scripts/ynh_send_readme_to_admin__2 b/scripts/ynh_send_readme_to_admin__2
index 06cff8c..fc329d3 100644
--- a/scripts/ynh_send_readme_to_admin__2
+++ b/scripts/ynh_send_readme_to_admin__2
@@ -23,7 +23,7 @@ ynh_send_readme_to_admin() {
 	type="${type:-install}"
 
 	# Get the value of admin_mail_html
-	admin_mail_html=$(ynh_app_setting_get $app admin_mail_html)
+	admin_mail_html=$(ynh_app_setting_get "$app" admin_mail_html)
 	admin_mail_html="${admin_mail_html:-0}"
 
 	# Retrieve the email of users