diff --git a/migrations/20241024235044_nullifier_hash_index.sql b/migrations/20241024235044_nullifier_hash_index.sql
new file mode 100644
index 0000000..8f20757
--- /dev/null
+++ b/migrations/20241024235044_nullifier_hash_index.sql
@@ -0,0 +1 @@
+CREATE INDEX IF NOT EXISTS idx_names_nullifier_hash ON names (nullifier_hash);
\ No newline at end of file
diff --git a/src/verify.rs b/src/verify.rs
index c519297..31284d1 100644
--- a/src/verify.rs
+++ b/src/verify.rs
@@ -16,7 +16,7 @@ pub enum Error {
 }
 
 #[derive(Debug, serde::Deserialize)]
-#[allow(dead_code, reason = "Fields are used on the HTTP response.")]
+#[allow(dead_code)] // Fields are used on the HTTP response
 pub struct ErrorResponse {
 	pub code: String,
 	pub detail: String,