diff --git a/lib/server/binom.js b/lib/server/binom.js
index 5e10ddf0..88145d21 100644
--- a/lib/server/binom.js
+++ b/lib/server/binom.js
@@ -7,10 +7,10 @@
         var ret;
             
              if (!Array.isArray(array))
-                throw(Error('array should be array!'));
+                throw Error('array should be array!');
                 
             if (typeof name !== 'string')
-                throw(Error('name should be string!'));
+                throw Error('name should be string!');
             
             array.some(function(item) {
                 var is      = item.name === name,