diff --git a/packer/vars/ubuntu-16.04.json b/packer/vars/ubuntu-16.04.json
index 370af61..94b2014 100644
--- a/packer/vars/ubuntu-16.04.json
+++ b/packer/vars/ubuntu-16.04.json
@@ -1,5 +1,5 @@
 {
-  "source_ami_filter_name": "*Ubuntu*16.04*",
+  "source_ami_filter_name": "*ubuntu*16.04*",
   "source_ami_filter_owner": "099720109477",
   "cloud_user": "ubuntu",