diff --git a/60.md b/60.md
index 64cd282a..b82cb64e 100644
--- a/60.md
+++ b/60.md
@@ -23,7 +23,7 @@ This NIP doesn't deal with users' *receiving* money from someone else, it's just
     "kind": 37375,
     "content": nip44_encrypt([
         [ "balance", "100", "sat" ],
-        [ "privkey", "hexkey" ] // explained in NIP-61
+        [ "privkey", "hexkey" ] // explained in NIP-61, appendix 1
     ]),
     "tags": [
         [ "d", "my-wallet" ],
@@ -49,7 +49,7 @@ Tags:
 * `name` - Optional human-readable name for the wallet.
 * `description` - Optional human-readable description of the wallet.
 * `balance` - Optional best-effort balance of the wallet that can serve as a placeholder while an accurate balance is computed from fetching all unspent proofs.
-* `privkey` - Private key used to unlock P2PK ecash. MUST be stored encrypted in the `.content` field. **This is a different private key exclusively used for the wallet, not associated in any way to the user's nostr private key** -- This is only used when receiving funds from others, described in NIP-61.
+* `privkey` - Optional private key used to unlock P2PK ecash. If present, MUST be stored encrypted in the `.content` field. **This is a different private key exclusively used for the wallet, not associated in any way to the user's nostr private key** -- This is only used when receiving funds from others, described in NIP-61, appendix 1.
 
 Any tag, other than the `d` tag, can be [[NIP-44]] encrypted into the `.content` field.