--- a/Allura/allura/controllers/attachments.py
+++ b/Allura/allura/controllers/attachments.py
@@ -53,7 +53,7 @@
         return attachment
         
     @expose()
-    def index(self, delete=False, embed=True, **kw):
+    def index(self, delete=False, **kw):
         if request.method == 'POST':
             require_access(self.artifact, self.edit_perm)
             if delete:
@@ -64,7 +64,7 @@
                 except exc.HTTPNotFound:
                     pass
             redirect(request.referer)
-        return self.attachment.serve(embed)
+        return self.attachment.serve(False)
 
     @expose()
     def thumb(self, embed=True):