diff --git a/os_vars/debian.yml b/os_vars/debian.yml
index 00bb382..314e3a6 100644
--- a/os_vars/debian.yml
+++ b/os_vars/debian.yml
@@ -1,5 +1,5 @@
 snmp-user: Debian-snmp
-mtapackage: ssmtp
+mta_package: ssmtp
 
 redis_pkgs:
   packages: