diff --git a/roles/arp-cache/tasks/main.yml b/roles/arp_cache/tasks/main.yml
similarity index 100%
rename from roles/arp-cache/tasks/main.yml
rename to roles/arp_cache/tasks/main.yml
diff --git a/site.yml b/site.yml
index b377f13..684c615 100644
--- a/site.yml
+++ b/site.yml
@@ -12,7 +12,7 @@
   hosts: [gw11.regensburg.freifunk.net, gw21.regensburg.freifunk.net, gw31.regensburg.freifunk.net, gw12.regensburg.freifunk.net, gw22.regensburg.freifunk.net]
   roles:
   - gw-admin-ssh-keys
-  - arp-cache
+  - arp_cache
   - batman
   - bird
   - fastd