diff --git a/lib/http/server.js b/lib/http/server.js
index 6390c047..04f9d4ec 100644
--- a/lib/http/server.js
+++ b/lib/http/server.js
@@ -245,7 +245,9 @@ HTTPServer.prototype._init = function _init() {
       options.id = params.id;
     }
 
-    if (params.hash) {
+    if (utils.isUInt32(params.hash)) {
+      options.height = params.hash;
+    } else if (params.hash) {
       enforce(typeof params.hash === 'string', 'Hash must be a string.');
       if (params.hash.length !== 64) {
         options.height = Number(params.hash);