diff --git a/tasks/install.yaml b/tasks/install.yaml
index e18d302..618578a 100644
--- a/tasks/install.yaml
+++ b/tasks/install.yaml
@@ -7,7 +7,7 @@
 
     # install repository - debian
     - name: "install repository"
-      when: 'ansible_os_family == "Debian"'
+      when: 'ansible_facts["os_family"] == "Debian"'
       block:
 
         # remove old proxy