diff --git a/session.go b/session.go
index 4c39192..615694d 100644
--- a/session.go
+++ b/session.go
@@ -144,6 +144,8 @@ func (ses *Session) SetConfig(typeConfig TypeConfig, values interface{}) {
 			ses.transport.Proxy = http.ProxyURL(purl)
 		case *url.URL:
 			ses.transport.Proxy = http.ProxyURL(v)
+		case nil:
+			ses.transport.Proxy = nil
 		}
 	case ConfigInsecure:
 		ses.transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: !values.(bool)}