diff --git a/doc/sphinx/arm/hooks-perfmon.rst b/doc/sphinx/arm/hooks-perfmon.rst
index e470a942b5..3ad0a9de6f 100644
--- a/doc/sphinx/arm/hooks-perfmon.rst
+++ b/doc/sphinx/arm/hooks-perfmon.rst
@@ -146,7 +146,7 @@ An example of the anticipated configuration is shown below:
                     "low-water-ms" : 25
                 }]
             }
-        }],
+        }]
     }
 
 ..