diff --git a/curtab b/curtab
index b8dbf0a..8792708 100755
--- a/curtab
+++ b/curtab
@@ -6,7 +6,7 @@ require 'json'
 
 session = JSON.load(File.read(Dir[
    File.expand_path("~/.mozilla/firefox/*.default/sessionstore.js"
-   )].first)[1...-1])
+   )].first))
 
 window = session["windows"][session["selectedWindow"]-1]
 tab    = window["tabs"][window["selected"]-1]