diff --git a/develop-docs/sdk/telemetry/spans/span-protocol.mdx b/develop-docs/sdk/telemetry/spans/span-protocol.mdx
index 12ecc3b1e8af87..b0c016e475eade 100644
--- a/develop-docs/sdk/telemetry/spans/span-protocol.mdx
+++ b/develop-docs/sdk/telemetry/spans/span-protocol.mdx
@@ -183,7 +183,7 @@ Empty attributes must be omitted.
 | `user.id` | string | The user ID (gated by `sendDefaultPii`) |
 | `user.email` | string | The user email (gated by `sendDefaultPii`) |
 | `user.ip_address` | string | The user IP address (gated by `sendDefaultPii`) |
-| `user.username` | string | The user username (gated by `sendDefaultPii`) |
+| `user.name` | string | The user username (gated by `sendDefaultPii`) |
 | `thread.id` | string | The thread ID |
 | `thread.name` | string | The thread name |
 | `sentry.sdk.name` | string | Name of the Sentry SDK (e.g., "sentry.php", "sentry.javascript") |