diff --git a/content/treestyletab/treestyletabbrowser.js b/content/treestyletab/treestyletabbrowser.js
index 20b0ac3d..11f17e3c 100644
--- a/content/treestyletab/treestyletabbrowser.js
+++ b/content/treestyletab/treestyletabbrowser.js
@@ -445,7 +445,6 @@ TreeStyleTabBrowser.prototype = {
 				b.tabContainer._getDropIndex.toSource().replace(
 					/\.screenX/g, '[this.treeStyleTab.positionProp]'
 				).replace(
-
 					/\.width/g, '[this.treeStyleTab.sizeProp]'
 				)
 			);