diff --git a/flutter/lib/models/ab_model.dart b/flutter/lib/models/ab_model.dart
index b9740ed8f..18bb73c3f 100644
--- a/flutter/lib/models/ab_model.dart
+++ b/flutter/lib/models/ab_model.dart
@@ -47,7 +47,7 @@ class AbModel with ChangeNotifier {
   }
 
   Future<String> getApiServer() async {
-    return await bind.mainGetApiServer() ?? "";
+    return await bind.mainGetApiServer();
   }
 
   void reset() {
diff --git a/flutter/lib/models/file_model.dart b/flutter/lib/models/file_model.dart
index e86ac1de2..35deabac5 100644
--- a/flutter/lib/models/file_model.dart
+++ b/flutter/lib/models/file_model.dart
@@ -292,14 +292,12 @@ class FileModel extends ChangeNotifier {
   onReady() async {
     _localOption.home = _ffi.target?.getByName("get_home_dir") ?? "";
     _localOption.showHidden = (await bind.sessionGetPeerOption(
-                id: _ffi.target?.id ?? "", name: "local_show_hidden"))
-            ?.isNotEmpty ??
-        false;
+            id: _ffi.target?.id ?? "", name: "local_show_hidden"))
+        .isNotEmpty;
 
     _remoteOption.showHidden = (await bind.sessionGetPeerOption(
-                id: _ffi.target?.id ?? "", name: "remote_show_hidden"))
-            ?.isNotEmpty ??
-        false;
+            id: _ffi.target?.id ?? "", name: "remote_show_hidden"))
+        .isNotEmpty;
     _remoteOption.isWindows = _ffi.target?.ffiModel.pi.platform == "Windows";
 
     debugPrint("remote platform: ${_ffi.target?.ffiModel.pi.platform}");
@@ -307,11 +305,9 @@ class FileModel extends ChangeNotifier {
     await Future.delayed(Duration(milliseconds: 100));
 
     final local = (await bind.sessionGetPeerOption(
-            id: _ffi.target?.id ?? "", name: "local_dir")) ??
-        "";
+        id: _ffi.target?.id ?? "", name: "local_dir"));
     final remote = (await bind.sessionGetPeerOption(
-            id: _ffi.target?.id ?? "", name: "remote_dir")) ??
-        "";
+        id: _ffi.target?.id ?? "", name: "remote_dir"));
     openDirectory(local.isEmpty ? _localOption.home : local, isLocal: true);
     openDirectory(remote.isEmpty ? _remoteOption.home : remote, isLocal: false);
     await Future.delayed(Duration(seconds: 1));
diff --git a/flutter/lib/models/user_model.dart b/flutter/lib/models/user_model.dart
index 539211664..b43b4510b 100644
--- a/flutter/lib/models/user_model.dart
+++ b/flutter/lib/models/user_model.dart
@@ -18,7 +18,7 @@ class UserModel extends ChangeNotifier {
     if (userName.isNotEmpty) {
       return userName.value;
     }
-    final userInfo = await bind.mainGetLocalOption(key: 'user_info') ?? "{}";
+    final userInfo = await bind.mainGetLocalOption(key: 'user_info');
     if (userInfo.trim().isEmpty) {
       return "";
     }