diff --git a/ChangeLog b/ChangeLog
index 10e5bd39..0ccaebe2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,7 @@
 	the meaning of 'all' to "all menus where the function exists".
 	* src/rcfile.c (is_universal): New function, returning TRUE for the
 	functions that are present in most menus but only listed in MMAIN.
+	* doc/man/nanorc.5, doc/texinfo/nano.texi: Update the docs for this.
 
 2014-06-25  Benno Schulenberg  <bensberg@justemail.net>
 	* src/browser.c (do_browser): Allow 'firstfile' and 'lastfile' to be
diff --git a/doc/man/nanorc.5 b/doc/man/nanorc.5
index 87b7ea86..1681a73d 100644
--- a/doc/man/nanorc.5
+++ b/doc/man/nanorc.5
@@ -322,7 +322,8 @@ Key bindings may be reassigned via the following commands:
 .TP
 .BI bind " key function menu"
 Rebinds the key \fIkey\fP to a new function named \fIfunction\fP in the
-context of menu \fImenu\fP (or in all menus by using \fBall\fP).
+context of menu \fImenu\fP (or in all menus where the function exists
+by using \fBall\fP).
 .TP
 .BI unbind " key menu"
 Unbinds the key \fIkey\fP from the menu named \fImenu\fP (or from all
@@ -655,9 +656,9 @@ The 'search for a file' menu in the file browser.
 The 'go to directory' menu in the file browser.
 .TP
 .B all
-A special name that encompasses all menus.  For rebinding keys, it really
-means all menus (which may have unobvious effects, so use it carefully);
-for unbinding keys, it just means all the menus where the key exists.
+A special name that encompasses all menus.
+For \fBbind\fR it means all menus where the specified \fIfunction\fR exists;
+for \fBunbind\fR it means all menus where the specified \fIkey\fR exists.
 
 .SH FILES
 .TP
diff --git a/doc/texinfo/nano.texi b/doc/texinfo/nano.texi
index b79098a2..6dedd472 100644
--- a/doc/texinfo/nano.texi
+++ b/doc/texinfo/nano.texi
@@ -843,7 +843,7 @@ nanorc file:
 
 @item bind key function menu
 Rebinds @code{key} to @code{function} in the context of @code{menu}
-(or in all menus by using @code{all}).
+(or in all menus where the function exists by using @code{all}).
 
 @item unbind key menu
 Unbinds @code{key} from @code{menu}
@@ -1183,9 +1183,9 @@ The 'search for a file' menu in the file browser.
 The 'go to directory' menu in the file browser.
 
 @item all
-A special name that encompasses all menus.  For rebinding keys, it really
-means all menus (which may have unobvious effects, so use it carefully);
-for unbinding keys, it just means all the menus where the key exists.
+A special name that encompasses all menus.  For @code{bind} it means
+all menus where the specified @code{function} exists; for @code{unbind}
+it means all menus where the specified @code{key} exists.
 @end table