diff --git a/appengine/storage.js b/appengine/storage.js
index d2f53529a..c8390b5c8 100644
--- a/appengine/storage.js
+++ b/appengine/storage.js
@@ -72,7 +72,6 @@ BlocklyStorage.link = function() {
  * @param {string} key Key to XML, obtained from href.
  */
 BlocklyStorage.retrieveXml = function(key) {
-  var xml = Blockly.Xml.workspaceToDom(Blockly.getMainWorkspace());
   BlocklyStorage.makeRequest_('/storage', 'key', key);
 };
 
diff --git a/core/field_colour.js b/core/field_colour.js
index 40f0aeb9b..acc044fe9 100644
--- a/core/field_colour.js
+++ b/core/field_colour.js
@@ -153,7 +153,7 @@ Blockly.FieldColour.prototype.setColours = function(colours) {
 
 /**
  * Set a custom grid size for this field.
- * @param {number} colours Number of columns for this block,
+ * @param {number} columns Number of columns for this block,
  *     or 0 to use default (Blockly.FieldColour.COLUMNS).
  * @return {!Blockly.FieldColour} Returns itself (for method chaining).
  */
diff --git a/core/mutator.js b/core/mutator.js
index 04ed0781f..15ccc7ef4 100644
--- a/core/mutator.js
+++ b/core/mutator.js
@@ -116,7 +116,7 @@ Blockly.Mutator.prototype.updateEditable = function() {
     this.setVisible(false);
     if (this.iconGroup_) {
       Blockly.addClass_(/** @type {!Element} */ (this.iconGroup_),
-                           'blocklyIconGroupReadonly');
+                        'blocklyIconGroupReadonly');
     }
   }
 };