diff -urN thttpd-2.21-11/libhttpd.c thttpd-2.21-12/libhttpd.c
--- thttpd-2.21-11/libhttpd.c	Fri Nov 30 12:30:15 2001
+++ thttpd-2.21-12/libhttpd.c	Fri Nov 30 17:54:04 2001
@@ -880,7 +880,7 @@
      We want our own err404...
      */
 
-    if ( (status==404) || (status==400) )
+    if (status==404)
     {
 	if ( send_err_file( hc, status, title, extraheads, ERR404FILENAME) )
 	    return;