diff --git a/ARCs/arc-0079.md b/ARCs/arc-0079.md
index aaad03e72..f6afbbad2 100644
--- a/ARCs/arc-0079.md
+++ b/ARCs/arc-0079.md
@@ -39,7 +39,7 @@ methodparam     = "method=" *qchar
 boxparam        = "box=" *qbase64url
 argparam        = "arg=" (*qchar | *digit)
 feeparam        = "fee=" *digit
-accountparam    = "account=" *qchar
+accountparam    = "account=" *base32
 assetparam      = "asset=" *digit
 otherparam      = qchar *qchar [ "=" *qchar ]
 ```