diff --git a/Algo/Séminaire/Chapter 3 - Case analysis.md b/Algo/Séminaire/Chapter 3 - Case analysis.md
index a7fdad2..e6304c1 100644
--- a/Algo/Séminaire/Chapter 3 - Case analysis.md	
+++ b/Algo/Séminaire/Chapter 3 - Case analysis.md	
@@ -67,8 +67,8 @@ match expr with pattern1 -> result1 | pattern2 -> result2 | ... | patternn -> re
 ```Ocaml
 # let f x = match x with 
 	0 -> 18
-	1 -> 24
-	y ->  y + y;;
+	| 1 -> 24
+	| y ->  y + y;;
 
 val f : int -> int = <fun>