diff --git a/DAPagesContainer/DAPagesContainer.m b/DAPagesContainer/DAPagesContainer.m
index 51b6627..f46b0bd 100644
--- a/DAPagesContainer/DAPagesContainer.m
+++ b/DAPagesContainer/DAPagesContainer.m
@@ -118,7 +118,7 @@ - (void)setSelectedIndex:(NSUInteger)selectedIndex animated:(BOOL)animated
     NSAssert(selectedIndex < self.viewControllers.count, @"selectedIndex should belong within the range of the view controllers array");
     UIButton *previosSelectdItem = self.topBar.itemViews[self.selectedIndex];
     UIButton *nextSelectdItem = self.topBar.itemViews[selectedIndex];
-    if (abs(self.selectedIndex - selectedIndex) <= 1) {
+    if (abs((int())self.selectedIndex - selectedIndex)) <= 1) {
         [self.scrollView setContentOffset:CGPointMake(selectedIndex * self.scrollWidth, 0.) animated:animated];
         if (selectedIndex == _selectedIndex) {
             self.pageIndicatorView.center = CGPointMake([self.topBar centerForSelectedItemAtIndex:selectedIndex].x,
@@ -450,4 +450,4 @@ - (void)getRed:(CGFloat *)red green:(CGFloat *)green blue:(CGFloat *)blue alpha:
     }
 }
 
-@end
\ No newline at end of file
+@end