Index: branches/release-35/lib/MT/CMS/User.pm
===================================================================
--- branches/release-35/lib/MT/CMS/User.pm (revision 1869)
+++ branches/release-35/lib/MT/CMS/User.pm (revision 1908)
@@ -828,5 +828,7 @@
     my $app = shift;
 
-    my ($asset, $bytes) = $app->_upload_file(
+    require MT::CMS::Asset;
+    my ($asset, $bytes) = MT::CMS::Asset::_upload_file(
+        $app,
         @_,
         require_type => 'image',