diff --git a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
index 553863e..5236123 100644
--- a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
+++ b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
@@ -294,7 +294,7 @@
         if(raw){
           // Download
           JGitUtil.getContentFromId(git, objectId, true).map { bytes =>
-            RawData(FileUtil.getContentType(path, bytes), bytes)
+            RawData("application/octet-stream", bytes)
           } getOrElse NotFound
         } else {
           html.blob(id, repository, path.split("/").toList,