diff --git a/draft-ietf-quic-transport.md b/draft-ietf-quic-transport.md
index 0bee3cba61..61f80a9363 100644
--- a/draft-ietf-quic-transport.md
+++ b/draft-ietf-quic-transport.md
@@ -1139,7 +1139,8 @@ Stateless Reset do not contain frames.
 {: #packet-frames title="QUIC Payload"}
 
 QUIC payloads MUST contain at least one frame, and MAY contain multiple
-frames and multiple frame types.
+frames and multiple frame types. Endpoints that receive a packet containing
+no frames MAY terminate the connection with error PROTOCOL_VIOLATION.
 
 Frames MUST fit within a single QUIC packet and MUST NOT span a QUIC packet
 boundary. Each frame begins with a Frame Type, indicating its type, followed by