diff --git a/tasks/blacklists.yml b/tasks/blacklists.yml
index fb0a9bd6ac7baef9a4f81742aa387482f8a01fed..29e1f011629619c086a12b16d6d61dc8c1749bc3 100644
--- a/tasks/blacklists.yml
+++ b/tasks/blacklists.yml
@@ -7,7 +7,7 @@
     dest: /etc/haproxy/{{ item }}
     owner: root
     group: root
-    mode: 644
+    mode: 0644
   with_items:
     - blacklist.ip
     - blacklist.referer