diff --git a/docs/concepts/CustomMessages.md b/docs/concepts/CustomMessages.md
index 2bd7b21..3949ed7 100644
--- a/docs/concepts/CustomMessages.md
+++ b/docs/concepts/CustomMessages.md
@@ -10,15 +10,15 @@ Next ensure you have a constructor that takes the `TypeName` string parameter fi
 
 Example:
 ```cs
-    [NmeaMessageType("PTEST")]
-    public class CustomMessage : NmeaMessage
+[NmeaMessageType("PTEST")]
+public class CustomMessage : NmeaMessage
+{
+    public CustomMessage(string type, string[] parameters) : base(type, parameters)
     {
-        public CustomMessage(string type, string[] parameters) : base(type, parameters)
-        {
-            Value = parameters[0];
-        }
-        public string Value { get; }
+        Value = parameters[0];
     }
+    public string Value { get; }
+}
 ```
 
 Next register this with the NMEA Parser using either:
@@ -80,4 +80,4 @@ var msg1 = NmeaMessage.Parse(input1);
 var msg2 = NmeaMessage.Parse(input2, msg1 as IMultiSentenceMessage);
 ```
 
-If msg1 and msg2 aren't the same instance, it means the message couldn't be added to the previous message, and a new message was generated.
\ No newline at end of file
+If msg1 and msg2 aren't the same instance, it means the message couldn't be added to the previous message, and a new message was generated.