diff --git a/system/base.sls b/system/base.sls
index e4805db..5351005 100644
--- a/system/base.sls
+++ b/system/base.sls
@@ -26,7 +26,7 @@ system_base_apps_dir:
     - dir_mode: '0755'
     - file_mode: '0644'
 
-{% set OS_VERSION = salt['cmd.shell']('date "+%Y%m"') %}
+{% set OS_VERSION_DATE = salt['cmd.shell']('date "+%Y%m"') %}
 
 system_base_os-release:
   file.managed:
@@ -34,7 +34,7 @@ system_base_os-release:
     - source: salt://{{ tpldir }}/files/base_os-release.jinja
     - template: jinja
     - context:
-        OS_VERSION: {{ OS_VERSION }}
+        OS_VERSION: {{ OS_VERSION_DATE }}
     - user: root
     - group: root
     - mode: '0644'
@@ -54,4 +54,4 @@ system_base_motd:
     - group: root
     - mode: '0644'
     - require:
-      - system_base_os-release
\ No newline at end of file
+      - system_base_os-release