diff --git a/NEWS b/NEWS
index cbd322c5..e98d12e9 100644
--- a/NEWS
+++ b/NEWS
@@ -10,6 +10,9 @@ Changes in magit 0.8:
 * Switching to a remote branch will offer to create a local tracking
   branch for it.
 
+* Hitting C-c C-s while editing a commit message will toggle the
+  "--signoff" option.
+
 * Bug fixes to make Magit work better with newer Gits.
 
 Changes in magit 0.7:
diff --git a/magit.texi b/magit.texi
index 29f3d998..57bf8fcc 100644
--- a/magit.texi
+++ b/magit.texi
@@ -264,7 +264,11 @@ Another choice is stage everything at the time of hitting @kbd{c}.
 
 You can type @kbd{C-c C-a} in the buffer with the change description
 to toggle a flag that determines whether the next commit will
-@emph{amending} the current commit in HEAD.
+@emph{amend} the current commit in HEAD.
+
+Typing @kbd{C-c C-s} will toggle the @code{--signoff} option.  The
+default is determined by the @code{magit-commit-signoff} customization
+variable.
 
 If you change your mind and don't want to go ahead with your commit
 while you are in the @code{*magit-log-edit*} buffer, you can just