diff --git a/lnurl.py b/lnurl.py
index f8679db..8c4a5e1 100644
--- a/lnurl.py
+++ b/lnurl.py
@@ -89,7 +89,7 @@ async def api_lnurl_callback(
         wallet_id=link.wallet,
         amount=int(amount_received / 1000),
         memo=link.description,
-        unhashed_description=json.dumps(nostr).encode()
+        unhashed_description=nostr.encode()
         if nostr
         else link.lnurlpay_metadata.encode(),
         extra=extra,