--- lib/private/image.php	2014-05-05 09:06:35.284153738 -0400
+++ lib/private/image.php	2014-05-05 09:07:08.347506883 -0400
@@ -346,7 +346,7 @@
 				break;
 		}
 		if($rotate) {
-			$res = imagerotate($this->resource, $rotate, -1);
+			$res = imagerotate($this->resource, $rotate, 0);
 			if($res) {
 				if(imagealphablending($res, true)) {
 					if(imagesavealpha($res, true)) {