From f7d298c9baf46bb6f69384d4011a500ec2bec7ab Mon Sep 17 00:00:00 2001
From: Enrico Stara <enrico.stara@gmail.com>
Date: Sun, 16 Aug 2015 23:15:44 +0200
Subject: [PATCH] Check if the result is a boolean

---
 lib/utility.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/utility.js b/lib/utility.js
index 8b52ee7..900bbd6 100644
--- a/lib/utility.js
+++ b/lib/utility.js
@@ -34,7 +34,7 @@ function callService(service, emitter, channel, callback) {
         emitter.once('error', reject);
         emitter.once(eventName, function (result) {
             emitter.removeListener('error', reject);
-            if (result.instanceOf('mtproto.type.Rpc_error')) {
+            if (typeof result !== 'boolean' && result.instanceOf('mtproto.type.Rpc_error')) {
                 reject(new Error(result.error_message));
             } else {
                 fulfill(result);