diff --git a/lib/util.js b/lib/util.js
index 6651147..c257f8f 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -132,12 +132,13 @@ exports.clone = function( data )
     }
     else if ( data instanceof Object )
     {
-        var newobj = {};
+        var newobj = {},
+            hasOwn = Object.prototype.hasOwnProperty;
 
         // copy data to the new object
         for ( prop in data )
         {
-            if ( data.hasOwnProperty( prop ) )
+            if ( hasOwn.call( data, prop ) )
             {
                 newobj[ prop ] = data[ prop ];
             }
@@ -167,14 +168,16 @@ exports.propParse = function( data, options )
         callback_prop   = options.property || fvoid,
         callback_method = options.method   || fvoid,
         callback_getter = options.getter   || fvoid,
-        callback_setter = options.setter   || fvoid;
+        callback_setter = options.setter   || fvoid,
+
+        hasOwn = Object.prototype.hasOwnProperty;
 
     // for each of the given properties, determine what type of property we're
     // dealing with (in the classic OO sense)
     for ( prop in data )
     {
         // ignore properties of instance prototypes
-        if ( !( data.hasOwnProperty( prop ) ) )
+        if ( !( hasOwn.call( data, prop ) ) )
         {
             continue;
         }