diff --git a/core/bubble.js b/core/bubble.js
index 993565982..dbe10cd1b 100644
--- a/core/bubble.js
+++ b/core/bubble.js
@@ -35,12 +35,10 @@ const dom = goog.require('Blockly.utils.dom');
 const math = goog.require('Blockly.utils.math');
 const userAgent = goog.require('Blockly.utils.userAgent');
 const utils = goog.require('Blockly.utils');
-
 /** @suppress {extraRequire} */
 goog.require('Blockly.Workspace');
 
 
-
 /**
  * Class for UI bubble.
  * @param {!WorkspaceSvg} workspace The workspace on which to draw the