diff --git a/Proof-of-Work.md b/Proof-of-Work.md
index 75bb615..dffa0dc 100644
--- a/Proof-of-Work.md
+++ b/Proof-of-Work.md
@@ -1,6 +1,6 @@
 # Proof of Work
 
-In the "hold a competition" case of [leader selection](Leader (s)election) we need a special kind of puzzle that has a few important properties:
+In the "hold a competition" case of [leader selection](Leader-(s)election) we need a special kind of puzzle that has a few important properties:
 
 1. Difficult to solve, but easy to verify. A human-type puzzle that fits this description would be a jigsaw puzzle: it takes a long time to figure out where all the pieces go, but once complete anyone can check whether it is correctly solved by merely glancing at it.
 2. Given a set of equally powerful contenders, the outcome should be random.
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