diff --git a/presigned_url.go b/presigned_url.go
index 7c1b021..4837712 100644
--- a/presigned_url.go
+++ b/presigned_url.go
@@ -20,7 +20,8 @@ func (c Client) GetPresignedURL(ctx context.Context, bucket, object string, expi
 	// get
 	presignedURL, err := c.client.PresignedGetObject(context.Background(), bucket, object, expiry, reqParams)
 	if err != nil {
-		fmt.Println("[minio.GetPresignedURL] error:", err.Error())
+		fmt.Printf("[minio.GetPresignedURL][%s] get object %s error: %s \n", bucket, object, err.Error())
+		fmt.Printf("params %v \n", reqParams)
 		return ""
 	}