diff --git a/ftp.go b/ftp.go
index faf1c9c..f8b9153 100644
--- a/ftp.go
+++ b/ftp.go
@@ -346,7 +346,7 @@ func (c *ServerConn) setUTF8() error {
 	}
 
 	// Workaround for FTP servers, that does not support this option.
-	if code == StatusBadArguments {
+	if code == StatusBadArguments || code == StatusNotImplementedParameter {
 		return nil
 	}