diff --git a/src/pixi/textures/Texture.js b/src/pixi/textures/Texture.js
index 112517f..58dc76a 100644
--- a/src/pixi/textures/Texture.js
+++ b/src/pixi/textures/Texture.js
@@ -16,8 +16,8 @@
  * @constructor
  * @param baseTexture {BaseTexture} The base texture source to create the texture from
  * @param frame {Rectangle} The rectangle frame of the texture to show
- * @param crop {Rectangle} The area of original texture 
- * @param trim {Rectangle} Trimmed texture rectangle
+ * @param [crop] {Rectangle} The area of original texture 
+ * @param [trim] {Rectangle} Trimmed texture rectangle
  */
 PIXI.Texture = function(baseTexture, frame, crop, trim)
 {