diff --git a/COPYRIGHT b/COPYRIGHT
index a860268..38d5dbd 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -32,3 +32,7 @@ THE SOFTWARE.
 ===============================================================================
 
 (end of COPYRIGHT)
+
+The Lua command line interpeter of this build uses the GNU readline library,
+which is subject to the GNU General Public License.  However, the Lua library
+itself does not link with readline and thus is not tainted by the GPL.
diff --git a/doc/lua.1 b/doc/lua.1
index 24809cc..6e94adb 100644
--- a/doc/lua.1
+++ b/doc/lua.1
@@ -152,6 +152,8 @@ show version information.
 .SH "SEE ALSO"
 .BR luac (1)
 .br
+lua5-doc package
+.br
 http://www.lua.org/
 .SH DIAGNOSTICS
 Error messages should be self explanatory.