diff --git a/bip-0003.md b/bip-0003.md
index f3d85da7..e81e3e2a 100644
--- a/bip-0003.md
+++ b/bip-0003.md
@@ -561,7 +561,7 @@ This BIP replaces BIP 2 as the guideline for the BIP process.
 #### BIP Types
 
 Standards Track BIPs and eligible Informational BIPs are assigned the Specification type. The Standards Track type is
-considered obsolete. Specification BIPs use the Layer header rules specified in [BIP 123](BIP-0123.mediawiki).
+considered obsolete. Specification BIPs use the Layer header rules specified in [BIP 123](bip-0123.mediawiki).
 
 #### Comments