diff --git a/salt/minion.sls b/salt/minion.sls
index fc363a374..fe5111e8b 100644
--- a/salt/minion.sls
+++ b/salt/minion.sls
@@ -18,7 +18,7 @@ download-salt-minion:
                     {% endif %}
     - user: root
     - group: wheel
-    - mode: 0644
+    - mode: '0644'
     - unless:
       - test -n "{{ salt_settings.version }}" && '/opt/salt/bin/salt-minion --version=.*{{ salt_settings.version }}.*'
     - require_in: