Add missing word. 

My best guess is that word missing was "simple".
Typo fix
Typo fix
Typo fix
Merge remote-tracking branch 'origin/pr/29'
Merge remote-tracking branch 'origin/pr/30'
Merge remote-tracking branch 'origin/pr/31'
Merge remote-tracking branch 'origin/pr/28'
Re-fix pr #28
6.0.9