diff --git a/lib/pages/timetable_page.dart b/lib/pages/timetable_page.dart
index 4c24e1a8..89f9fbaf 100644
--- a/lib/pages/timetable_page.dart
+++ b/lib/pages/timetable_page.dart
@@ -251,39 +251,46 @@ class _TimetablePageState extends State<TimetablePage> {
       },
       onDeleteTap: (i) {
         if (i == 0) {
-          OTLNavigator.pushDialog(
-            context: context,
-            builder: (_) => OTLDialog(
-                type: OTLDialogType.accountDeleted,
+          WidgetsBinding.instance.addPostFrameCallback((_) {
+            OTLNavigator.pushDialog(
+              context: context,
+              builder: (_) => OTLDialog(
+                  type: OTLDialogType.accountDeleted,
+                  namedArgs: {
+                    'timetable': 'timetable.tab'
+                        .tr(args: [timetableModel.selectedIndex.toString()])
+                  },
+                  onTapPos: () {}),
+            );
+          });
+        } else if (timetableModel.timetables.length <= 2) {
+          WidgetsBinding.instance.addPostFrameCallback((_) {
+            OTLNavigator.pushDialog(
+              context: context,
+              builder: (_) => OTLDialog(
+                type: OTLDialogType.disabledDeleteLastTab,
                 namedArgs: {
                   'timetable': 'timetable.tab'
                       .tr(args: [timetableModel.selectedIndex.toString()])
                 },
-                onTapPos: () {}),
-          );
-        } else if (timetableModel.timetables.length <= 2) {
-          OTLNavigator.pushDialog(
-            context: context,
-            builder: (_) => OTLDialog(
-              type: OTLDialogType.disabledDeleteLastTab,
-              namedArgs: {
-                'timetable': 'timetable.tab'
-                    .tr(args: [timetableModel.selectedIndex.toString()])
-              },
-            ),
-          );
+              ),
+            );
+          });
         } else {
-          OTLNavigator.pushDialog(
-            context: context,
-            builder: (_) => OTLDialog(
-              type: OTLDialogType.deleteTab,
-              namedArgs: {
-                'timetable': 'timetable.tab'
-                    .tr(args: [timetableModel.selectedIndex.toString()])
-              },
-              onTapPos: () => context.read<TimetableModel>().deleteTimetable(),
-            ),
-          );
+          WidgetsBinding.instance.addPostFrameCallback((_) {
+            OTLNavigator.pushDialog(
+              context: context,
+              builder: (_) => OTLDialog(
+                type: OTLDialogType.deleteTab,
+                namedArgs: {
+                  'timetable': 'timetable.tab'
+                      .tr(args: [timetableModel.selectedIndex.toString()])
+                },
+                onTapPos: () =>
+                    context.read<TimetableModel>().deleteTimetable(),
+              ),
+            );
+          });
         }
       },
       onExportTap: (type) {