diff --git a/roles/lib/install-docker.yml b/roles/lib/install-docker.yml
index 281aa9a..b8c322c 100644
--- a/roles/lib/install-docker.yml
+++ b/roles/lib/install-docker.yml
@@ -1,6 +1,6 @@
   - name: Create container.io apt preferences file
     copy:
-      dest: /etc/apt/preferences.d/container.io
+      dest: /etc/apt/preferences.d/99-container
       content: |
         Package: container.io
         Pin: version 1.7.*