diff --git a/tests/silly/fib.tig b/tests/silly/fib.tig
new file mode 100644
index 0000000..52f1b46
--- /dev/null
+++ b/tests/silly/fib.tig
@@ -0,0 +1,14 @@
+let
+	function fib(n:int):int =
+		if n = 0
+		then 
+			0
+		else
+			if n = 1
+			then
+				1
+			else
+				fib(n-1) + fib(n-2)
+in
+	print_int(fib(41)); 0
+end
\ No newline at end of file