diff --git a/src/Chapter06/Listing06.56.DefiningANestedClass.cs b/src/Chapter06/Listing06.56.DefiningANestedClass.cs
index 7a1c8133..8802994f 100644
--- a/src/Chapter06/Listing06.56.DefiningANestedClass.cs
+++ b/src/Chapter06/Listing06.56.DefiningANestedClass.cs
@@ -41,7 +41,7 @@ public static void Main(string[] args)
         CommandLine commandLine = new(args);
         #endregion HIGHLIGHT
 
-        // Error handling intentionaly missing for elucidation.
+        // Error handling intentionally missing for elucidation.
 
         switch (commandLine.Action)
         {