diff --git a/prometheus/server.sls b/prometheus/server.sls
index 8262c0b..ca9a9f6 100644
--- a/prometheus/server.sls
+++ b/prometheus/server.sls
@@ -18,6 +18,7 @@
     - name: {{ server.dir.config }}/prometheus.yml
     - source: salt://prometheus/files/server/prometheus.yml
     - template: jinja
+    - mode: 644
     - defaults:
         server: {{ server }}
     - require:
@@ -28,6 +29,7 @@
     - name: {{ server.dir.config }}/alerts.yml
     - source: salt://prometheus/files/server/{{server.version}}/alerts.yml
     - template: jinja
+    - mode: 644
     - defaults:
         server: {{ server }}
     - require:
@@ -44,6 +46,7 @@
     - name: /etc/default/prometheus
     - source: salt://prometheus/files/server/default
     - template: jinja
+    - mode: 644
     - defaults:
         server: {{ server }}