diff --git a/doc/tor-doc.html b/doc/tor-doc.html
index a276480205..1701ac7b05 100644
--- a/doc/tor-doc.html
+++ b/doc/tor-doc.html
@@ -269,6 +269,8 @@ as a server on Windows now as well.)
 </p>
 
 <ul>
+<li>0. Verify that your clock is set correctly. If possible, synchronize
+your clock with public time servers.</li>
 <li>1. Edit the bottom part of your torrc (if you installed from source,
 you will need to copy torrc.sample to torrc first. Look for them in
 /usr/local/etc/tor/ on Unix).  If you installed a package, you should look