diff --git a/monad/index.md b/monad/index.md
index d692e18da..9ede8e1b4 100644
--- a/monad/index.md
+++ b/monad/index.md
@@ -32,4 +32,4 @@ Use the Monad in any of the following situations
 
 * [Design Pattern Reloaded by Remi Forax](https://youtu.be/-k2X7guaArU)
 * [Brian Beckman: Don't fear the Monad](https://channel9.msdn.com/Shows/Going+Deep/Brian-Beckman-Dont-fear-the-Monads)
-* [Monad on Wikipedia](https://en.wikipedia.org/wiki/Monad_(functional_programming)
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+* [Monad on Wikipedia](https://en.wikipedia.org/wiki/Monad_(functional_programming))
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