diff --git a/mysql/map.jinja b/mysql/map.jinja
index 39ebd49..88ad200 100644
--- a/mysql/map.jinja
+++ b/mysql/map.jinja
@@ -26,6 +26,6 @@
         'service': 'mysql-server',
         'config': '/usr/local/etc/my.cnf',
         'python': 'pymysql',
-        'mysql-size': 'medium',
+        'mysql_size': 'medium',
     },
 }, merge=salt['pillar.get']('mysql:lookup')) %}
diff --git a/mysql/server.sls b/mysql/server.sls
index c61ea03..b21f792 100644
--- a/mysql/server.sls
+++ b/mysql/server.sls
@@ -45,7 +45,7 @@ selinux_enforcing:
 my.cnf:
   file.managed:
     - name: {{ mysql.config }}
-    - source: salt://mysql/files/my-{{ mysql.mysql-size }}.cnf
+    - source: salt://mysql/files/my-{{ mysql.mysql_size }}.cnf
     - user: root
     - group: root
     - mode: 644