diff --git a/XLPagerTabStrip/XL/Controllers/XLPagerTabStripViewController.m b/XLPagerTabStrip/XL/Controllers/XLPagerTabStripViewController.m
index 11ffcf2..2dbdd42 100644
--- a/XLPagerTabStrip/XL/Controllers/XLPagerTabStripViewController.m
+++ b/XLPagerTabStrip/XL/Controllers/XLPagerTabStripViewController.m
@@ -354,7 +354,7 @@
     else{
         if ([self.delegate respondsToSelector:@selector(pagerTabStripViewController:updateIndicatorFromIndex:toIndex:)] && oldCurrentIndex != newCurrentIndex){
             [self.delegate pagerTabStripViewController:self
-                              updateIndicatorFromIndex:MAX(oldCurrentIndex, self.pagerTabStripChildViewControllers.count - 1)
+                              updateIndicatorFromIndex:MIN(oldCurrentIndex, self.pagerTabStripChildViewControllers.count - 1)
                                                toIndex:newCurrentIndex];
         }
     }