diff --git a/specs/altair/fork.md b/specs/altair/fork.md
index 3c2ea843e..f80064a83 100644
--- a/specs/altair/fork.md
+++ b/specs/altair/fork.md
@@ -17,7 +17,7 @@
 
 ## Introduction
 
-This document describes the process of the first upgrade of the eacon chain: the Altair hard fork, introducing light client support and other improvements.
+This document describes the process of the first upgrade of the beacon chain: the Altair hard fork, introducing light client support and other improvements.
 
 ## Configuration