diff --git a/transport/internet/httpupgrade/dialer.go b/transport/internet/httpupgrade/dialer.go
index cf244b38d..74463e672 100644
--- a/transport/internet/httpupgrade/dialer.go
+++ b/transport/internet/httpupgrade/dialer.go
@@ -111,6 +111,7 @@ func dialhttpUpgrade(ctx context.Context, dest net.Destination, streamSettings *
 
 	err = req.Write(conn)
 	if err != nil {
+		conn.Close()
 		return nil, err
 	}
 
@@ -123,6 +124,7 @@ func dialhttpUpgrade(ctx context.Context, dest net.Destination, streamSettings *
 	if transportConfiguration.Ed == 0 {
 		_, err = connRF.Read([]byte{})
 		if err != nil {
+			conn.Close()
 			return nil, err
 		}
 	}