diff --git a/21g30t1e75.js b/21g30t1e75.js
index 49e906b..713b5ab 100644
--- a/21g30t1e75.js
+++ b/21g30t1e75.js
@@ -65,6 +65,8 @@ GameLib.CustomCode.OBJECT_TYPE_SNAKE_BODY	= 1;
 GameLib.CustomCode.OBJECT_TYPE_FOOD 		= 2;
 GameLib.CustomCode.OBJECT_TYPE_POWERUP	    = 3;
 
+this.extendSpeedGrain = (GameLib.CustomCode.SPEED_INITIAL - GameLib.CustomCode.MAX_SPEED) / (GameLib.CustomCode.GRID_WIDTH * GameLib.CustomCode.GRID_HEIGHT);
+
 /**
  * Get runtime
  */
@@ -1157,6 +1159,8 @@ GameLib.CustomCode.prototype.extend = function(gameObject, position, orientation
         this.gameOver(true);
     }
 
+	this.speed -= this.extendSpeedGrain;
+	
 }.bind(this);
 
 /**