diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index df152e0b1..c9e62bc01 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -1,6 +1,6 @@
 # Ethereum 2.0 Phase 0 -- The Beacon Chain
 
-**NOTICE**: This document is a work-in-progress for researchers and implementers. It reflects recent spec changes and takes precedence over the Python proof-of-concept implementation [[python-poc]]](#ref-python-poc).
+**NOTICE**: This document is a work-in-progress for researchers and implementers. It reflects recent spec changes and takes precedence over the Python proof-of-concept implementation [[python-poc]](#ref-python-poc).
 
 ## Table of contents
 * [Ethereum 2.0 Phase 0 -- The Beacon Chain](#ethereum-20-phase-0----the-beacon-chain)