diff --git a/lib/board/pedax_board.dart b/lib/board/pedax_board.dart
index 72a1b04d7..96b6b8b4c 100644
--- a/lib/board/pedax_board.dart
+++ b/lib/board/pedax_board.dart
@@ -57,7 +57,9 @@ class PedaxBoardState extends State<PedaxBoard> {
         future: _bookFileOption.val,
         builder: (context, snapshot) {
           if (snapshot.hasData) {
-            _boardNotifier.requestBookLoad(snapshot.data!);
+            WidgetsBinding.instance.addPostFrameCallback((_) {
+              _boardNotifier.requestBookLoad(snapshot.data!);
+            });
             return _board;
           }
           return const Center(child: CupertinoActivityIndicator());