diff --git a/docs/CONFIGURATION.md b/docs/CONFIGURATION.md
index e8de887f5..c6f81949d 100644
--- a/docs/CONFIGURATION.md
+++ b/docs/CONFIGURATION.md
@@ -159,7 +159,7 @@ authentication:
       - username: john
         password: secret
 authorization:
-  acls:
+  acl:
     silences: /etc/karma/acls.yaml
   groups:
     - name: admins