diff --git a/pkg/node/identity.go b/pkg/node/identity.go
index 20215c2..7a20fd9 100644
--- a/pkg/node/identity.go
+++ b/pkg/node/identity.go
@@ -18,7 +18,8 @@ import (
 	"github.com/adrg/xdg"
 )
 
-// ChallengeSize is the size of the challenge in bytes
+// challenge := make([]byte, ChallengeSize)
+// rand.Read(challenge)
 const ChallengeSize = 32
 
 // challenge, err := node.GenerateChallenge()