diff --git a/_security/access-control/api.md b/_security/access-control/api.md
index d282371ea1..9473c16c20 100644
--- a/_security/access-control/api.md
+++ b/_security/access-control/api.md
@@ -830,7 +830,7 @@ PATCH _plugins/_security/api/roles
 ```
 {% include copy-curl.html %}
 
-You can use `-` to insert new permission to the end of the array of permissions.
+You can use `-` to insert a new permission to the end of the array of permissions.
 {: .note}
 
 #### Example response