diff --git a/lib/src/widgets/toolbar/base_button/base_value_button.dart b/lib/src/widgets/toolbar/base_button/base_value_button.dart
index 670e25480..24cf993d8 100644
--- a/lib/src/widgets/toolbar/base_button/base_value_button.dart
+++ b/lib/src/widgets/toolbar/base_button/base_value_button.dart
@@ -84,6 +84,7 @@ abstract class QuillToolbarBaseButtonState<
   }
 
   void didChangeEditingValue() {
+    if (!mounted) return;
     setState(() => currentValue = currentStateValue);
   }