diff --git a/frontend/src/models/DirectoryModel.js b/frontend/src/models/DirectoryModel.js
index 0041bff5e..d0faf2747 100644
--- a/frontend/src/models/DirectoryModel.js
+++ b/frontend/src/models/DirectoryModel.js
@@ -97,7 +97,6 @@ export function createDirectoryModel(origin, accessToken, api) {
         xhr.open('POST', `${origin}/api/v1/${api}/files/${encodeURIComponent(sanitize(targetDir + '/' + relativefilePath))}?access_token=${accessToken}`);
 
         xhr.setRequestHeader('Content-Type', 'application/octet-stream');
-        xhr.setRequestHeader('Content-Length', file.size);
 
         xhr.send(file);
       });