diff --git a/HACKING b/HACKING
index 0294713..0b31215 100644
--- a/HACKING
+++ b/HACKING
@@ -468,7 +468,7 @@ you'd use doc/Copyright/request-assign.future:
     https://www.gnu.org/software/gnulib/Copyright/request-assign.future
 
 You may make assignments for up to four projects at a time.
-[
+
 In case you're wondering why we bother with all of this, read this:
 
     https://www.gnu.org/licenses/why-assign.html