diff --git a/steve/ctyp-str/draft-ietf-cose-hash-envelope.html b/steve/ctyp-str/draft-ietf-cose-hash-envelope.html
index 7decc75..c6571fe 100644
--- a/steve/ctyp-str/draft-ietf-cose-hash-envelope.html
+++ b/steve/ctyp-str/draft-ietf-cose-hash-envelope.html
@@ -1460,7 +1460,7 @@
Description: The content format associated with the bytes that were hashed to produce the payload.
uint
payload_preimage_content_types SHOULD be registered in the content-formats registry.
-str
values MAY be used when registered values may not yet be registered.¶
+tstr
values MAY be used when registered values may not yet be registered.¶
diff --git a/steve/ctyp-str/draft-ietf-cose-hash-envelope.txt b/steve/ctyp-str/draft-ietf-cose-hash-envelope.txt
index 65a023d..1bd1d10 100644
--- a/steve/ctyp-str/draft-ietf-cose-hash-envelope.txt
+++ b/steve/ctyp-str/draft-ietf-cose-hash-envelope.txt
@@ -293,7 +293,7 @@ Table of Contents
* Description: The content format associated with the bytes that
were hashed to produce the payload. uint
payload_preimage_content_types SHOULD be registered in the
- content-formats registry. str values MAY be used when registered
+ content-formats registry. tstr values MAY be used when registered
values may not yet be registered.
8.1.3. Payload Location