diff --git a/template/en/default/global/hidden-fields.html.tmpl b/template/en/default/global/hidden-fields.html.tmpl
index 24f15c4f5..ec2345a42 100644
--- a/template/en/default/global/hidden-fields.html.tmpl
+++ b/template/en/default/global/hidden-fields.html.tmpl
@@ -33,7 +33,7 @@
   [%# The '.slice(0)' bit is here to force the 'param(field)' to be evaluated
       in a list context, so we can avoid extra code checking for single valued or
       empty fields %]
-  [% IF field == "data" && cgi.param("data") %]
+  [% IF cgi.upload(field) %]
     <div class="box">
       <p>
         We were unable to store the file you uploaded because of incomplete information