diff --git a/90.md b/90.md
index 387321c3..6e04b4ca 100644
--- a/90.md
+++ b/90.md
@@ -52,7 +52,7 @@ The following are two protocol flow examples using the 1174 event kind. Other fl
 		[“magic”, <4-byte hex value representing the Bitcoin network identifier>],
 		[“relays”, <list of relays to broadcast event>],
 	],
-	"content": <hex encoded PSBT>,
+	"content": <base64 encoded PSBT>,
 	"sig": <64-bytes hex of the signature of the sha256 hash of the serialized event data, which is the same as the "id" field>
 }
 ```