diff --git a/http/handler.go b/http/handler.go
index 02b93e0..adeb252 100644
--- a/http/handler.go
+++ b/http/handler.go
@@ -337,6 +337,7 @@ func (this *Handler) logErr (name string, err error) {
 }
 
 func (this *Handler) rateLimit (req *http.Request, resource string, duration time.Duration) error {
+	if duration == 0 { return nil }
 	host, _, _ := net.SplitHostPort(req.RemoteAddr)
 	key := fmt.Sprintf("%s|%s", host, resource)
 	table, done := this.rateLimitMap.Borrow()