diff --git a/index.js b/index.js
index e57dac7..bf786d7 100644
--- a/index.js
+++ b/index.js
@@ -1,18 +1,24 @@
-module.exports = function(dest, options){     
-    try{
+module.exports = function (dest, options) {
+    try {
         var root = __dirname;
         var fs = require('fs');
-        
+
         var jsonSettings = fs.readFileSync(root + '/defaults/settings.json');
         var defaults = JSON.parse(jsonSettings);
-        
-        if(typeof options !== "object"){
+
+        if (typeof options !== "object") {
             options = defaults;
-        }
-        else{
-            for(var key in defaults){
-                if(options[key] === undefined){
+        } else {
+            for (var key in defaults) {
+                if (typeof (options[key]) === "undefined") {
                     options[key] = defaults[key];
+                } 
+                else if (typeof options[key] === "object") {
+                    for (var k in defaults[key]) {
+                        if (typeof (options[key][k]) === "undefined") {
+                            options[key][k] = defaults[key][k];
+                        }
+                    }
                 }
             }
         }
@@ -22,14 +28,13 @@ module.exports = function(dest, options){
         patterns.clearfix = fs.readFileSync(root + '/system/patterns/clearfix');
         patterns.reset = fs.readFileSync(root + '/system/patterns/reset');
         patterns.debug = fs.readFileSync(root + '/system/patterns/debug');
-    
+
         var build = require('./build.js');
         var res = build(options, patterns);
 
-        if(dest === undefined){
+        if (dest === undefined) {
             console.log('It`s test mode, because you don`t set destination folder');
-        }
-        else{
+        } else {
             var buildFile = dest + '/' + options.filename + '.' + res.type;
             fs.writeFileSync(buildFile, res.grid);
             console.log('Grid placed into ' + buildFile);
@@ -37,8 +42,7 @@ module.exports = function(dest, options){
 
         console.log('Grid length is ' + res.grid.length + ' :)');
         console.log("Its work! Good day!");
-    }
-    catch(err){
+    } catch (err) {
         console.log("Oops -> " + err);
     }
 }
\ No newline at end of file