diff --git a/lib/bcoin/script.js b/lib/bcoin/script.js
index e3bcb1c5..8004eea5 100644
--- a/lib/bcoin/script.js
+++ b/lib/bcoin/script.js
@@ -1564,6 +1564,7 @@ Script.bool = function bool(value) {
  * @param {Buffer} value
  * @param {Number?} flags - Script standard flags.
  * @param {Number?} size - Max size in bytes.
+ * @returns {BN}
  * @throws {ScriptError}
  */