diff --git a/KLCircleViewControllerDemo/KLViewController.m b/KLCircleViewControllerDemo/KLViewController.m
index 18fd57a..31bf87c 100644
--- a/KLCircleViewControllerDemo/KLViewController.m
+++ b/KLCircleViewControllerDemo/KLViewController.m
@@ -51,7 +51,7 @@
                                                              rightViewController: right
                                                                topViewController: nil
                                                             bottomViewController: bottom];
-    
+
     [self.circleVC.view setFrame: self.view.bounds];
     [self.view insertSubview: self.circleVC.view
                 belowSubview: self.leftButton];