diff --git a/Algorithms/Math/Fibonacci.fs b/Algorithms/Math/Fibonacci.fs
index 1fb284a..58f2e2e 100644
--- a/Algorithms/Math/Fibonacci.fs
+++ b/Algorithms/Math/Fibonacci.fs
@@ -4,4 +4,10 @@ module Fibonacci =
     let rec PrintSerie (one: int) (two: int) =
         let fibo = one + two
         System.Console.WriteLine fibo
-        PrintSerie two fibo
\ No newline at end of file
+        PrintSerie two fibo
+        
+    let rec NthFibonacci (n: int): int =
+        match n with
+            | 0 -> 0
+            | 1 -> 1
+            | n -> NthFibonacci (n-1) + NthFibonacci (n-2)