--- nginx-1.2.8/src/http/modules/ngx_http_referer_module.c	2013-05-06 03:27:10.000000000 -0700
+++ nginx-1.2.8-patched/src/http/modules/ngx_http_referer_module.c	2013-05-21 16:04:49.340286168 -0700
@@ -396,8 +396,7 @@ ngx_http_valid_referers(ngx_conf_t *cf,
 
     ngx_str_set(&name, "invalid_referer");
 
-    var = ngx_http_add_variable(cf, &name,
-                                NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOHASH);
+    var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE);
     if (var == NULL) {
         return NGX_CONF_ERROR;
     }