diff --git a/seahub/utils/__init__.py b/seahub/utils/__init__.py
index eabbb4012f..185731937f 100644
--- a/seahub/utils/__init__.py
+++ b/seahub/utils/__init__.py
@@ -71,7 +71,7 @@ PREVIEW_FILEEXT = {
     MARKDOWN: ('markdown', 'md'),
     SF: ('seaf',),
     VIDEO: ('mp4', 'ogv', 'webm', 'flv', 'wmv'),
-    AUDIO: ('mp3',),
+    AUDIO: ('mp3', 'oga', 'ogg'),
     '3D': ('stl', 'obj'),
 }