diff --git a/lib/utils/platform_adapter.dart b/lib/utils/platform_adapter.dart
index 6a37d035..c1bdcbde 100644
--- a/lib/utils/platform_adapter.dart
+++ b/lib/utils/platform_adapter.dart
@@ -6,14 +6,14 @@ import 'package:flutter/foundation.dart';
 /// SelfPrivacy wrapper for Platform information provider.
 class PlatformAdapter {
   /// Persistent storage directory for data files.
-  static String get storagePath {
-    String path = '.';
+  static String? get storagePath {
+    String? path;
     if (Platform.isLinux) {
       // https://wiki.archlinux.org/title/XDG_Base_Directory
-      path = Platform.environment['XDG_DATA_HOME'] ?? '.';
-      if (path == '.') {
+      path = Platform.environment['XDG_DATA_HOME'];
+      if (path == null) {
         final String home = Platform.environment['HOME'] ?? '.';
-        path += '$home/.local/share';
+        path = '$home/.local/share';
       }
       path += '/selfprivacy';
     }