diff --git a/docs/registry.go b/docs/registry.go
index 0c648a94..d1315ed4 100644
--- a/docs/registry.go
+++ b/docs/registry.go
@@ -147,7 +147,10 @@ func doRequest(req *http.Request, jar http.CookieJar, timeout TimeoutType) (*htt
 		client := newClient(jar, pool, cert, timeout)
 		res, err := client.Do(req)
 		// If this is the last cert, otherwise, continue to next cert if 403 or 5xx
-		if i == len(certs)-1 || err == nil && res.StatusCode != 403 && res.StatusCode < 500 {
+		if i == len(certs)-1 || err == nil &&
+			res.StatusCode != 403 &&
+			res.StatusCode != 404 &&
+			res.StatusCode < 500 {
 			return res, client, err
 		}
 	}