Index: branches/release-33/lib/MT/Template/ContextHandlers.pm
===================================================================
--- branches/release-33/lib/MT/Template/ContextHandlers.pm (revision 1747)
+++ branches/release-33/lib/MT/Template/ContextHandlers.pm (revision 1755)
@@ -2403,5 +2403,5 @@
             }
         }
-        $fmgr->put_data($ret, $file_path)
+        defined($fmgr->put_data($ret, $file_path))
             or return $ctx->error(MT->translate("Writing to '[_1]' failed: [_2]",
                 $file_path, $fmgr->errstr));