diff --git a/defaults/main.yml b/defaults/main.yml
index 57bc27ba..8ec09c18 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -34,6 +34,7 @@ lxc_architecture_mapping:
   ppc64le: ppc64el
   s390x: s390x
   armv7l: armhf
+  aarch64: arm64
 
 # Set the volume size for the machine image caches. We only use the
 # most specific mountpoint from the hierarchy.