diff --git a/41.md b/41.md
index 1c5ba005..7f4c7a10 100644
--- a/41.md
+++ b/41.md
@@ -10,13 +10,15 @@ This NIP offers a plug-and-play method to export/sync information from existing
 
 Event kind `31200` represents a row in a database. Each value of the row is added as a tag whose name is the column's name. 
 
+The `d` tag is used for the row's primary key, the `n` tag places the row into an unbound list and the optional `u` tag references a database name. 
+
 Values can be public or encrypted to the user. 
 
 ```js
 {
   "kind": 31200,
   "tags": [
-    ["d", "<row-private-key>"]
+    ["d", "<row-primary-key>"]
     ["n", "<table-name>"]
     ["u", "<database-name>"]
     ["<column-name>", "<column-row-value>"]