diff --git a/ubuntu/site.yml b/ubuntu/site.yml
index fb698d0..271848a 100644
--- a/ubuntu/site.yml
+++ b/ubuntu/site.yml
@@ -15,7 +15,7 @@
     - php
 
 - name: install Icinga 2 for client usage
-  host: icinga-clients
+  hosts: icinga-clients
   user: root
 
   role: