diff --git a/lib/net/pool.js b/lib/net/pool.js
index e05c6619..b6c11c4d 100644
--- a/lib/net/pool.js
+++ b/lib/net/pool.js
@@ -3490,7 +3490,7 @@ Pool.prototype.hasBlock = co(function* hasBlock(hash) {
 /**
  * Test whether the mempool has or has seen an item.
  * @param {Hash} hash
- * @returns {Promise} - Returns Boolean.
+ * @returns {Boolean}
  */
 
 Pool.prototype.hasTX = function hasTX(hash) {