diff --git a/internal/wire/transport_parameters.go b/internal/wire/transport_parameters.go
index 2d02f399..da6ff50a 100644
--- a/internal/wire/transport_parameters.go
+++ b/internal/wire/transport_parameters.go
@@ -129,7 +129,7 @@ func (p *TransportParameters) unmarshal(data []byte, sentBy protocol.Perspective
 				return err
 			}
 		default:
-			if r.Len() < int(paramLen) {
+			if uint64(r.Len()) < paramLen {
 				return fmt.Errorf("remaining length (%d) smaller than parameter length (%d)", r.Len(), paramLen)
 			}
 			switch paramID {