diff --git a/middleware/replacer.go b/middleware/replacer.go
index 6f47dfef..aea14bff 100644
--- a/middleware/replacer.go
+++ b/middleware/replacer.go
@@ -53,9 +53,11 @@ func NewReplacer(r *http.Request, rr *responseRecorder) replacer {
 		"{when}": func() string {
 			return time.Now().Format(timeFormat)
 		}(),
-		"{status}":  strconv.Itoa(rr.status),
-		"{size}":    strconv.Itoa(rr.size),
-		"{latency}": time.Since(rr.start).String(),
+	}
+	if rr != nil {
+		rep["{status}"] = strconv.Itoa(rr.status)
+		rep["{size}"] = strconv.Itoa(rr.size)
+		rep["{latency}"] = time.Since(rr.start).String()
 	}
 
 	// Header placeholders