diff --git a/lib/services/address/index.js b/lib/services/address/index.js
index 7d74adb0..42cd6617 100644
--- a/lib/services/address/index.js
+++ b/lib/services/address/index.js
@@ -738,8 +738,8 @@ AddressService.prototype.isSpent = function(output, queryMempool, callback) {
  * @param {Object} options - The options to limit the query
  * @param {Number} [options.from] - The pagination "from" index
  * @param {Number} [options.to] - The pagination "to" index
- * @param {Number} [options.start] - The beginning block height
- * @param {Number} [options.end] - The ending block height
+ * @param {Number} [options.start] - The beginning block height (e.g. 1500 the most recent block height).
+ * @param {Number} [options.end] - The ending block height (e.g. 0 the older block height, results are inclusive).
  * @param {Boolean} [options.queryMempool] - Include the mempool in the query
  * @param {Function} callback
  */