diff --git a/lib/transport/messages.js b/lib/transport/messages.js
index 8817463e2..ffe82c796 100644
--- a/lib/transport/messages.js
+++ b/lib/transport/messages.js
@@ -584,6 +584,17 @@ function GetHeaders(starts, stop) {
 util.inherits(GetHeaders, GetBlocks);
 module.exports.GetHeaders = Message.COMMANDS.getheaders = GetHeaders;
 
+/**
+ * GetMempool Message
+ *
+ * @name Transport.Message.GetMempool
+ */
+function GetMempool() {
+  this.command = 'mempool';
+}
+
+util.inherits(GetMempool, Message);
+module.exports.GetMempool = Message.COMMANDS.mempool = GetMempool;
 
 // TODO: Remove this PATCH (yemel)
 Buffers.prototype.skip = function (i) {