diff --git a/scripts/jquery.parallax-1.1.3.js b/scripts/jquery.parallax-1.1.3.js
index f3569dc..4142f60 100644
--- a/scripts/jquery.parallax-1.1.3.js
+++ b/scripts/jquery.parallax-1.1.3.js
@@ -59,7 +59,7 @@ http://www.gnu.org/licenses/gpl.html
 					return;
 				}
 
-				$this.css('backgroundPosition', xpos + " " + Math.round((firstTop - pos) * speedFactor) + "px");
+				$this.css('backgroundPosition', xpos + " " + Math.round(firstTop - (pos * speedFactor)) + "px");
 			});
 		}