--- a/mercurial/hgweb/server.py	Mon Dec 24 12:22:33 2007 +0100
+++ b/mercurial/hgweb/server.py	Mon Dec 24 17:21:40 2007 +0100
@@ -197,7 +197,7 @@
 
     def openlog(opt, default):
         if opt and opt != '-':
-            return open(opt, 'w')
+            return open(opt, 'a')
         return default
 
     if repo is None: