diff --git a/README.md b/README.md
index cb2188f..ed119ca 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ This simple plugin helps you centralize your DOM element against their parent el
 
 ## Installation
   - First, make sure you are using valid [DOCTYPE](http://bit.ly/hQK1Rk)
-  - Include nessesary JS files
+  - Include necessary JS files
 
 <!-- -->
 
diff --git a/jquery.center.js b/jquery.center.js
index 922e7a5..79646c7 100644
--- a/jquery.center.js
+++ b/jquery.center.js
@@ -18,7 +18,7 @@
   }
 
   $.fn.center = function( opt ){
-    var $w        = $( window ); // cache gobal
+    var $w        = $( window ); // cache global
     var scrollTop = $w.scrollTop();
 
     return this.each( function(){