diff --git a/flutter_cache_manager/lib/src/web/mime_converter.dart b/flutter_cache_manager/lib/src/web/mime_converter.dart
index 2c6ca1a4..bae4911f 100644
--- a/flutter_cache_manager/lib/src/web/mime_converter.dart
+++ b/flutter_cache_manager/lib/src/web/mime_converter.dart
@@ -53,13 +53,15 @@ const mimeTypes = {
   'audio/3gpp2': '.3g2',
   'audio/aac': '.aac',
   'audio/x-aac': '.aac',
-  'audio/midi audio/x-midi': '.midi',
+  'audio/midi': '.midi',
+  'audio/x-midi': '.midi',
   'audio/x-m4a': '.m4a',
   'audio/m4a': '.m4a',
   'audio/mpeg': '.mp3',
   'audio/ogg': '.oga',
   'audio/opus': '.opus',
   'audio/wav': '.wav',
+  'audio/x-wav': '.wav',
   'audio/webm': '.weba',
   'font/otf': '.otf',
   'font/ttf': '.ttf',