diff --git a/LMAlertView/CALayer+ModalAlert.m b/LMAlertView/CALayer+ModalAlert.m
index 085311c..824f6b8 100644
--- a/LMAlertView/CALayer+ModalAlert.m
+++ b/LMAlertView/CALayer+ModalAlert.m
@@ -42,7 +42,7 @@ - (void)_addAnimation:(CAAnimation *)anim forKey:(NSString *)key {
 	UIView *view = [self delegate];
 	UIWindow *window = [self windowForView:view];
 	
-	if ([window.rootViewController isKindOfClass:[LMEmbeddedViewController class]]) {
+	if ([window.rootViewController isKindOfClass:[LMEmbeddedViewController class]] && [anim isKindOfClass:[CABasicAnimation class]]) {
 		CABasicAnimation *basicAnim = (CABasicAnimation *)anim;
 		CGFloat modalWidth = 290.0;