diff --git a/bundles/apt/files/apt.conf-auto-upgrades b/bundles/apt/files/apt.conf-auto-upgrades
index 48bb139..5bf85d3 100644
--- a/bundles/apt/files/apt.conf-auto-upgrades
+++ b/bundles/apt/files/apt.conf-auto-upgrades
@@ -1,3 +1,3 @@
 APT::Periodic::Update-Package-Lists "1";
-PT::Periodic::Unattended-Upgrade "1";
+APT::Periodic::Unattended-Upgrade "1";
 APT::Periodic::AutocleanInterval "7";