diff --git a/19.md b/19.md
index 6b087426..cd989e21 100644
--- a/19.md
+++ b/19.md
@@ -35,7 +35,7 @@ These are the possible bech32 prefixes with `TLV`:
   - `nprofile`: a nostr profile
   - `nevent`: a nostr event
   - `nrelay`: a nostr relay
-  - `naddr`: a nostr _parameterized replaceable event_ coordinate
+  - `naddr`: a nostr _replaceable event_ coordinate
 
 These possible standardized `TLV` types are indicated here:
 
@@ -44,7 +44,7 @@ These possible standardized `TLV` types are indicated here:
     - for `nprofile` it will be the 32 bytes of the profile public key
     - for `nevent` it will be the 32 bytes of the event id
     - for `nrelay`, this is the relay URL
-    - for `naddr`, it is the identifier (the `"d"` tag) of the event being referenced
+    - for `naddr`, it is the identifier (the `"d"` tag) of the event being referenced. For non-parameterized replaceable events, use an empty string.
 - `1`: `relay`
   - for `nprofile`, `nevent` and `naddr`, _optionally_, a relay in which the entity (profile or event) is more likely to be found, encoded as ascii
   - this may be included multiple times