diff --git a/keyserver/addons/rust-node-addon/src/identity_client/add_reserved_usernames.rs b/keyserver/addons/rust-node-addon/src/identity_client/add_reserved_usernames.rs
--- a/keyserver/addons/rust-node-addon/src/identity_client/add_reserved_usernames.rs
+++ b/keyserver/addons/rust-node-addon/src/identity_client/add_reserved_usernames.rs
@@ -2,7 +2,7 @@
 
 #[napi]
 #[instrument(skip_all)]
-pub async fn add_reserved_username(
+pub async fn add_reserved_usernames(
   message: String,
   signature: String,
 ) -> Result<()> {