diff --git a/lib/src/widgets/toolbar.dart b/lib/src/widgets/toolbar.dart
index 4126a8b8..f6d4668f 100644
--- a/lib/src/widgets/toolbar.dart
+++ b/lib/src/widgets/toolbar.dart
@@ -411,6 +411,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
 
   final List<Widget> children;
   final double toolBarHeight;
+  final double toolBarSectionSpacing;
   final bool? multiRowsDisplay;
 
   /// The color of the toolbar.