1 files changed, 2 insertions, 2 deletions

diff --git a/doc/dns.html b/doc/dns.html
index 6abf341..17cee45 100644
--- a/doc/dns.html
+++ b/doc/dns.html
@@ -70,7 +70,7 @@ Converts from IP address to host name.
 <p class=return>
 The function a string  with the canonic host name of the given
 <tt>address</tt>, followed  by a  table with  all  information returned  by
-the  resolver.  In  case of error, the function returns <tt>nil</tt>
+the  resolver.  In  case of error, the function returns <b><tt>nil</tt></b>
 followed by an error message.  
 </p>
 
@@ -92,7 +92,7 @@ Converts from host name to IP address.
 <p class=return> 
 Returns a string  with the first IP address  found for <tt>address</tt>,
 followed  by a  table with  all  information returned  by the  resolver.
-In  case of error, the function returns <tt>nil</tt> followed by an error
+In  case of error, the function returns <b><tt>nil</tt></b> followed by an error
 message. 
 </p>