diff --git a/src/_drush b/src/_drush
index 8bf0198..03fa328 100644
--- a/src/_drush
+++ b/src/_drush
@@ -13,14 +13,13 @@
 #
 # ------------------------------------------------------------------------------
 
-# TODO
-# move global args to separate array, use compadd
-
 _drush() {
   local curcontext='$curcontext' state line cmds ret=1
   integer NORMARG
   typeset -A opt_args
 
+  global_args=('--debug' '--verbose' '--yes' '--no' '--simulate' '--root=' '--uri=')
+
   _arguments -C \
     '(--*)'{--version,--version}'[Show drush version.]' \
     '(- *)'{-d,--debug}'[Display even more information, including internal messages.]' \