--- a/http_variables.t
+++ b/http_variables.t
@@ -59,6 +59,12 @@ http {
             expires epoch;
             proxy_pass http://127.0.0.1:8080/set;
         }
+
+        location /limit_rate {
+            set $limit_rate 40k;
+            add_header X-Rate $limit_rate;
+            return 200 OK;
+        }
     }
 }
 
@@ -72,6 +78,10 @@ http_get('/');
 http_get('/../bad_uri');
 http_get('/redefine');
 
+# $limit_rate is a special variable that has its own set_handler / get_handler
+
+like(http_get('/limit_rate'), qr/X-Rate: 40960/, 'limit_rate handlers');
+
 $t->stop();
 
 my $log = $t->read_file('cc.log');