diff --git a/HACKING b/HACKING
index 8231d19..6b1a28a 100644
--- a/HACKING
+++ b/HACKING
@@ -29,7 +29,7 @@ Also, other rules we follow:
 
   this is right::
 
-     text = '%d characters % (count)
+     text = '%d characters' % (count)
 
 - Unless it's a work in progress, do not leave code commented (or,
   worse yet, inside a ``if 0:`` block.) If it's a WIP, be sure to