diff --git a/js/src/makegrid.js b/js/src/makegrid.js
index 254f378305..384d1b5d03 100644
--- a/js/src/makegrid.js
+++ b/js/src/makegrid.js
@@ -798,7 +798,7 @@ var makeGrid = function (t, enableResize, enableReorder, enableVisib, enableGrid
                 g.wasEditedCellNull = false;
                 if ($td.is(':not(.not_null)')) {
                     // append a null checkbox
-                    $editArea.append('<div class="null_div"><label>Null:<input type="checkbox"></label></div>');
+                    $editArea.append('<div class="null_div"><label>NULL:<input type="checkbox"></label></div>');
 
                     var $checkbox = $editArea.find('.null_div input');
                     // check if current <td> is NULL