diff --git a/v1/ucloud/mimetypes.php b/v1/ucloud/mimetypes.php
index f455c28..3df7c3c 100644
--- a/v1/ucloud/mimetypes.php
+++ b/v1/ucloud/mimetypes.php
@@ -439,7 +439,7 @@ $mimetype_complete_map = array(
     ".zoo" => "application/octet-stream",
     ".zsh" => "text/x-script.zsh",
     ".apk" => "application/vnd.android.package-archive",
-    ".ipa" => "application/vnd.android.package-archive",
+    ".ipa" => "application/octet-stream.ipa",
     ".flv" => "video/x-flv",
     ".mp4" => "video/mp4",
     ".m3u8" => "application/x-mpegURL",