--- httpd-2.0.47/modules/metadata/mod_expires-old.c	Sat May 31 17:54:08 2003
+++ httpd-2.0.47/modules/metadata/mod_expires.c	Sun Oct 12 14:01:35 2003
@@ -511,7 +511,7 @@
             /* Use the ExpiresDefault directive */
             expiry = conf->expiresdefault;
         }
-        if (expiry != NULL) {
+        if (expiry != NULL && expiry[0] != '\0') {
             set_expiration_fields(r, expiry, t);
         }
     }