diff --git a/core/workspace.js b/core/workspace.js
index 106a1dd21..b813d883e 100644
--- a/core/workspace.js
+++ b/core/workspace.js
@@ -34,7 +34,6 @@ goog.require('Blockly.Themes.Classic');
 goog.require('Blockly.utils');
 goog.require('Blockly.utils.math');
 goog.require('Blockly.VariableMap');
-goog.require('Blockly.WorkspaceComment');
 
 
 /**
diff --git a/core/xml.js b/core/xml.js
index f152f0a0f..817110c55 100644
--- a/core/xml.js
+++ b/core/xml.js
@@ -38,8 +38,6 @@ goog.require('Blockly.utils');
 goog.require('Blockly.utils.dom');
 goog.require('Blockly.utils.global');
 goog.require('Blockly.utils.xml');
-goog.require('Blockly.WorkspaceComment');
-goog.require('Blockly.WorkspaceCommentSvg');
 
 
 /**