diff --git a/lib/chai/utils/addMethod.js b/lib/chai/utils/addMethod.js
index 7c97a96b0..439201a5c 100644
--- a/lib/chai/utils/addMethod.js
+++ b/lib/chai/utils/addMethod.js
@@ -4,7 +4,9 @@
  * MIT Licensed
  */
 
+var chai = require('../../chai');
 var config = require('../config');
+var flag = require('./flag');
 var transferFlags = require('./transferFlags');
 
 /**
@@ -32,18 +34,19 @@ var transferFlags = require('./transferFlags');
  * @name addMethod
  * @api public
  */
-var flag = require('./flag');
 
 module.exports = function (ctx, name, method) {
   ctx[name] = function () {
     var old_ssfi = flag(this, 'ssfi');
     if (old_ssfi && config.includeStack === false)
       flag(this, 'ssfi', ctx[name]);
+
     var result = method.apply(this, arguments);
+    if (result !== undefined)
+      return result;
 
     var newAssertion = new chai.Assertion();
     transferFlags(this, newAssertion);
-
-    return result === undefined ? newAssertion: result;
+    return newAssertion;
   };
 };
diff --git a/lib/chai/utils/addProperty.js b/lib/chai/utils/addProperty.js
index 64e69ba32..cccb05996 100644
--- a/lib/chai/utils/addProperty.js
+++ b/lib/chai/utils/addProperty.js
@@ -4,6 +4,7 @@
  * MIT Licensed
  */
 
+var chai = require('../../chai');
 var config = require('../config');
 var flag = require('./flag');
 var transferFlags = require('./transferFlags');
@@ -44,10 +45,12 @@ module.exports = function (ctx, name, getter) {
           flag(this, 'ssfi', addProperty);
 
         var result = getter.call(this);
+        if (result !== undefined)
+          return result;
+
         var newAssertion = new chai.Assertion();
         transferFlags(this, newAssertion);
-
-        return result === undefined ? newAssertion: result;
+        return newAssertion;
       }
     , configurable: true
   });