diff --git a/lib/src/io_file.dart b/lib/src/io_file.dart
index b9bc28d..8ef393b 100644
--- a/lib/src/io_file.dart
+++ b/lib/src/io_file.dart
@@ -106,7 +106,8 @@ class IOFileAdapter {
 
   Future<IOFile> fromXFile(XFile file) async {
     final lastModified = await file.lastModified();
-    final contentType = lookupMimeTypeWithDefaultType(file.path);
+    final contentType =
+        file.mimeType ?? lookupMimeTypeWithDefaultType(file.path);
 
     return _FromXFile(
       file,
diff --git a/pubspec.yaml b/pubspec.yaml
index 1a21e1e..55339c7 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: ardrive_io
 description: A new Flutter package project.
-version: 1.4.0
+version: 1.4.1
 homepage:
 publish_to: none