diff --git a/security/voters.rst b/security/voters.rst
index b74c6fe615f..1b247441fc0 100644
--- a/security/voters.rst
+++ b/security/voters.rst
@@ -279,7 +279,7 @@ security configuration:
         >
 
             <config>
-                <access-decision-manager strategy="unanimous">
+                <access-decision-manager strategy="unanimous" />
             </config>
         </srv:container>