diff --git a/content/treestyletab/treestyletabbrowser.js b/content/treestyletab/treestyletabbrowser.js
index c274e140..14e0316d 100644
--- a/content/treestyletab/treestyletabbrowser.js
+++ b/content/treestyletab/treestyletabbrowser.js
@@ -1,4 +1,4 @@
- function TreeStyleTabBrowser(aTabBrowser) 
+function TreeStyleTabBrowser(aTabBrowser) 
 {
 	this.mTabBrowser = aTabBrowser;
 }