diff --git a/weed/s3api/s3api_object_handlers.go b/weed/s3api/s3api_object_handlers.go
index fa628f44e..fe134c102 100644
--- a/weed/s3api/s3api_object_handlers.go
+++ b/weed/s3api/s3api_object_handlers.go
@@ -266,7 +266,7 @@ func (s3a *S3ApiServer) proxyToFiler(w http.ResponseWriter, r *http.Request, des
 
 	resp, postErr := client.Do(proxyReq)
 
-	if resp.ContentLength == -1 && !strings.HasSuffix(destUrl, "/") {
+	if (resp.ContentLength == -1 || resp.StatusCode == 404) && !strings.HasSuffix(destUrl, "/") {
 		writeErrorResponse(w, s3err.ErrNoSuchKey, r.URL)
 		return
 	}