diff --git a/roles/common/defaults/main.yml b/roles/common/defaults/main.yml
new file mode 100644
index 0000000..8afd506
--- /dev/null
+++ b/roles/common/defaults/main.yml
@@ -0,0 +1,2 @@
+---
+disable_usb_wake: false
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index 9058af4..3dfce46 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -1,4 +1,9 @@
 ---
+- name: Import machine-specific variables
+  ignore_errors: yes # if the file doesn't exist, np, we have a default.yml
+  include_vars:
+    file: "{{ ansible_hostname }}.yml"
+
 - include: selinux.yml
 - include: packages.yml
 - include: users.yml
diff --git a/vars/tycho.yml b/vars/tycho.yml
new file mode 100644
index 0000000..69cc447
--- /dev/null
+++ b/vars/tycho.yml
@@ -0,0 +1,2 @@
+---
+disable_usb_wake: true