diff --git a/lib/flutter_xlider.dart b/lib/flutter_xlider.dart
index 29244f7..c010a3f 100644
--- a/lib/flutter_xlider.dart
+++ b/lib/flutter_xlider.dart
@@ -440,6 +440,8 @@ class _FlutterSliderState extends State<FlutterSlider>
                 curve: Curves.fastOutSlowIn));
 
     WidgetsBinding.instance!.addPostFrameCallback((_) {
+      if (!mounted) return;
+
       _renderBoxInitialization();
 
       _arrangeHandlersPosition();