diff --git a/nginx/tasks/nginx.yml b/nginx/tasks/nginx.yml
index f42e46ec..8bc72b3a 100644
--- a/nginx/tasks/nginx.yml
+++ b/nginx/tasks/nginx.yml
@@ -1,7 +1,9 @@
 ---
 - name: Install the Ubuntu PPA for nginx
   apt_repository: repo='{{ nginx_ppa_repo }}'
-  when: nginx_use_ppa
+  when:
+    - nginx_use_ppa
+    - '{{ ansible_distribution }}' == 'Ubuntu'
   tags: [ 'nginx', 'nginx_ppa' ]
 
 - name: Install the nginx web server