diff --git a/doc/cluster-of-clusters/name-game-sketch.org b/doc/cluster-of-clusters/name-game-sketch.org
index 3d752df..b65f38b 100644
--- a/doc/cluster-of-clusters/name-game-sketch.org
+++ b/doc/cluster-of-clusters/name-game-sketch.org
@@ -258,7 +258,7 @@ What if the CoC client uses a similar scheme?
 2. Coc calculates rs_hash(p.s.z.A,Map) = T
 3. CoC client requests @ cluster T: read(p.s.z,...) -> hooray!
 
-** The details: calculating 'a', the adjustment factor
+** The details: calculating 'A', the adjustment factor
 
 *** The good way: file write