diff --git a/Algo/Courses/Chapter 6 - Lists (Exercises).md b/Algo/Courses/Chapter 6 - Lists (Exercises).md
index 7bb1ad0..8fd3335 100644
--- a/Algo/Courses/Chapter 6 - Lists (Exercises).md	
+++ b/Algo/Courses/Chapter 6 - Lists (Exercises).md	
@@ -197,4 +197,5 @@ let insert_nth w i list =
 			| e::E when i = 1 -> x::e::t
 			| e::t -> e::insrec (i - 1) t
 		in insrec i list;;
+val insert_nth: 'a -> int -> 'a list -> 'a list = <fun>
 	
\ No newline at end of file