diff --git a/internal/protocol/encryption_level.go b/internal/protocol/encryption_level.go
index 6c9b08072..be5de8f7d 100644
--- a/internal/protocol/encryption_level.go
+++ b/internal/protocol/encryption_level.go
@@ -2,7 +2,7 @@ package protocol
 
 // EncryptionLevel is the encryption level
 // Default value is Unencrypted
-type EncryptionLevel int
+type EncryptionLevel uint8
 
 const (
 	// EncryptionUnspecified is a not specified encryption level