diff --git a/mod/data/fields.php b/mod/data/fields.php
index 88167597f2f..de3ca33b351 100755
--- a/mod/data/fields.php
+++ b/mod/data/fields.php
@@ -80,7 +80,7 @@
     switch($mode){
 
         case 'add':    ///add a new field
-            if (confirm_sesskey() and $field = data_submitted('fields.php')){
+            if (confirm_sesskey() and $field = data_submitted($CFG->wwwroot.'/mod/data/fields.php')){
 
                 $sql = 'SELECT * from '.$CFG->prefix.'data_fields WHERE name LIKE "'.$field->name.
                        '" AND dataid = '.$data->id;