diff --git a/lib/http/server.js b/lib/http/server.js
index b90dcb79..e6dac03b 100644
--- a/lib/http/server.js
+++ b/lib/http/server.js
@@ -274,6 +274,7 @@ HTTPServer.prototype.initRouter = function initRouter() {
       'Hash or height required.');
     enforce(!this.chain.options.spv, 'Cannot get block in SPV mode.');
 
+    hash = util.revHex(hash);
     block = yield this.chain.db.getBlock(hash);
 
     if (!block) {