diff --git a/lib/screens/room/categories/edit.dart b/lib/screens/room/categories/edit.dart
index 75626c4..ede33f3 100644
--- a/lib/screens/room/categories/edit.dart
+++ b/lib/screens/room/categories/edit.dart
@@ -12,9 +12,9 @@ import 'dart:math';
 class EditCategoryPage extends StatefulWidget {
   final String server;
   final String tag;
-  int? id;
+  final int? id;
 
-  EditCategoryPage(this.server, this.tag, {super.key, this.id});
+  const EditCategoryPage(this.server, this.tag, {super.key, this.id});
 
   @override
   State<StatefulWidget> createState() => _EditCategoryPageState();
@@ -30,7 +30,13 @@ class _EditCategoryPageState extends State<EditCategoryPage> {
   void initState() {
     super.initState();
 
-    WidgetsBinding.instance.addPostFrameCallback((_) => fetchCategory());
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (widget.id == null) {
+          // trying to create a new category
+          return;
+        }
+        fetchCategory();
+    });
   }
 
   void fetchCategory() {
@@ -46,7 +52,8 @@ class _EditCategoryPageState extends State<EditCategoryPage> {
         body: {
           'room': widget.tag,
           'server': widget.server,
-          'listCatID': widget.id}),
+          'listCatID': widget.id
+      }),
       onOK: (json) {
         setState(() {
             _ctrName.text = json['data']['title'];
@@ -241,8 +248,7 @@ class _EditCategoryPageState extends State<EditCategoryPage> {
         label: Text((widget.id == null)
           ? AppLocalizations.of(context)!.newCategoryShort
           : AppLocalizations.of(context)!.editCategoryShort),
-        icon: Icon((widget.id == null)
-          ? Icons.add : Icons.edit)),
+        icon: Icon((widget.id == null) ? Icons.add : Icons.edit)),
     );
   }
 }
diff --git a/lib/screens/room/main.dart b/lib/screens/room/main.dart
index fbd9ba9..2bba06f 100644
--- a/lib/screens/room/main.dart
+++ b/lib/screens/room/main.dart
@@ -76,6 +76,11 @@ class _RoomPageState extends State<RoomPage> {
   void initState() {
     super.initState();
 
+    room = Room(
+      id: widget.tag,
+      serverTag: widget.server
+    );
+
     _ctr.addListener(() {
         setState(() {
             page = _ctr.page?.toInt() ?? _ctr.initialPage;
@@ -126,23 +131,19 @@ class _RoomPageState extends State<RoomPage> {
           NavigationDestination(
             icon: const Icon(Icons.list),
             label: AppLocalizations.of(context)!.roomListTitle,
-            tooltip: AppLocalizations.of(context)!.roomListSubtitle
-          ),
+            tooltip: AppLocalizations.of(context)!.roomListSubtitle),
           NavigationDestination(
             icon: const Icon(Icons.inventory_2),
             label: AppLocalizations.of(context)!.roomProductsTitle,
-            tooltip: AppLocalizations.of(context)!.roomProductsSubtitle
-          ),
+            tooltip: AppLocalizations.of(context)!.roomProductsSubtitle),
           NavigationDestination(
             icon: const Icon(Icons.category),
             label: AppLocalizations.of(context)!.roomCategoriesTitle,
-            tooltip: AppLocalizations.of(context)!.roomCategoriesSubtitle
-          ),
+            tooltip: AppLocalizations.of(context)!.roomCategoriesSubtitle),
           NavigationDestination(
             icon: const Icon(Icons.info_rounded),
             label: AppLocalizations.of(context)!.roomAboutTitle,
-            tooltip: AppLocalizations.of(context)!.roomAboutSubtitle
-          ),
+            tooltip: AppLocalizations.of(context)!.roomAboutSubtitle),
         ],
       ),
     );
diff --git a/lib/screens/room/pages/categories.dart b/lib/screens/room/pages/categories.dart
index b722fce..beafb7d 100644
--- a/lib/screens/room/pages/categories.dart
+++ b/lib/screens/room/pages/categories.dart
@@ -123,7 +123,7 @@ class _RoomCategoriesPageState extends State<RoomCategoriesPage> {
                           context.pushNamed('edit-category', params: {
                               'server': widget.room!.serverTag,
                               'id': widget.room!.id,
-                              'cid': item.id.toString()
+                              'category': item.id.toString()
                           });
                         },
                       ),
diff --git a/lib/tools/fetch_wrapper.dart b/lib/tools/fetch_wrapper.dart
index 7e35bda..5ac8939 100644
--- a/lib/tools/fetch_wrapper.dart
+++ b/lib/tools/fetch_wrapper.dart
@@ -5,14 +5,15 @@ import 'package:outbag_app/tools/snackbar.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 Future<void> doNetworkRequest(ScaffoldMessengerState? sm,
-  {required Future<Response> Function() req,
+    {required Future<Response> Function() req,
     Function(Map<String, dynamic> body)? onOK,
     bool Function()? onNetworkErr,
     bool Function()? onUnknownErr,
     Function()? onAnyErr,
     Function()? after,
     bool Function(Map<String, dynamic>)? onServerErr}) async {
-  AppLocalizations? trans = (sm!=null)?AppLocalizations.of(sm.context):null;
+  AppLocalizations? trans =
+      (sm != null) ? AppLocalizations.of(sm.context) : null;
 
   Response res;
   try {
@@ -50,7 +51,8 @@ Future<void> doNetworkRequest(ScaffoldMessengerState? sm,
         showBar = onServerErr(res.body);
       }
       if (showBar && sm != null) {
-        showSimpleSnackbar(sm, text: errorAsString(res.body, trans!), action: trans.ok);
+        showSimpleSnackbar(sm,
+            text: errorAsString(res.body, trans!), action: trans.ok);
       }
       if (onAnyErr != null) {
         onAnyErr();