diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 09f33cd..3bcd187 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -392,9 +392,6 @@
     // TODO OPTIMIZE THIS!! with dirty
     if(this.rotation !== this.rotationCache)
     {
-        if(isNaN(parseFloat(this.rotation)))
-            throw new Error('DisplayObject rotation values must be numeric.');
-
         this.rotationCache = this.rotation;
         this._sr =  Math.sin(this.rotation);
         this._cr =  Math.cos(this.rotation);