diff --git a/exercises/1-monty-hall-problem/README.md b/exercises/1-monty-hall-problem/README.md
index fa77cda..0ac3194 100644
--- a/exercises/1-monty-hall-problem/README.md
+++ b/exercises/1-monty-hall-problem/README.md
@@ -51,4 +51,4 @@ Run your program 100,000 times.
 
 Write another program to query the database and return to you the percentage of times the choice was changed after the reveal and the car was won, and the percentage of times the choice was not changed after the reveal and the car was won.
 
-Write your findings in this file. Read through the [wikipedia]()
\ No newline at end of file
+Write your findings in this file. Read through the [wikipedia](http://en.wikipedia.org/wiki/Monty_Hall_problem)