diff --git a/15_Day_Classes/15_day_classes.md b/15_Day_Classes/15_day_classes.md
index 7b46328..2f01ecd 100644
--- a/15_Day_Classes/15_day_classes.md
+++ b/15_Day_Classes/15_day_classes.md
@@ -111,7 +111,7 @@ console.log(person)
 ```
 
 ```sh
-Person {firstName: undefined, lastName}
+Person { firstName: undefined, lastName: undefined }
 ```
 
 All the keys of the object are undefined. When ever we instantiate we should pass the value of the properties. Let us pass value at this time when we instantiate the class.