diff --git a/core/data_category.js b/core/data_category.js
index 447f924625..43052e5008 100644
--- a/core/data_category.js
+++ b/core/data_category.js
@@ -233,13 +233,13 @@ Blockly.DataCategory.addDeleteOfList = function(xmlList, variable) {
  * @param {?Blockly.VariableModel} variable Variable to select in the field.
  */
 
-  //Blockly.DataCategory.addDeleteAllOfList = function(xmlList, variable) {
-    // <block type="data_deletealloflist">
-    //   <field name="LIST" variabletype="list" id="">variablename</field>
-    // </block>
-    //Blockly.DataCategory.addBlock(xmlList, variable, 'data_deletealloflist',
-      //  'LIST');
-  //};
+//Blockly.DataCategory.addDeleteAllOfList = function(xmlList, variable) {
+//  // <block type="data_deletealloflist">
+//  //   <field name="LIST" variabletype="list" id="">variablename</field>
+//  // </block>
+//  Blockly.DataCategory.addBlock(xmlList, variable, 'data_deletealloflist',
+//      'LIST');
+//};
 
 /**
  * Construct and add a data_insertatlist block to xmlList.