diff --git a/zip-xxxx.rst b/zip-xxxx.rst
index 873b9e16..669d3053 100644
--- a/zip-xxxx.rst
+++ b/zip-xxxx.rst
@@ -31,7 +31,7 @@ Abstract
 
 This proposal defines an update to the Zcash peer-to-peer transaction format to
 include support for data elements required to support Zcash Shielded Assets,
-initially implemented to support the Orchard shielded pool [#protocol]_.  The
+initially specified to support the Orchard shielded pool [#protocol]_.  The
 new transaction format defines well-bounded regions of the serialized form to
 serve each of the existing pools of funds, and adds and describes a new elements
 containing ZSA-specific elements.