diff --git a/x/stake/commands/flags.go b/x/stake/commands/flags.go
index e5b97d62ce..4bafd9c650 100644
--- a/x/stake/commands/flags.go
+++ b/x/stake/commands/flags.go
@@ -29,7 +29,7 @@ var (
 )
 
 func init() {
-	fsPk.String(FlagPubKey, "", "PubKey of the validator-candidate")
+	fsPk.String(FlagPubKey, "", "Go-Amino encoded hex PubKey of the validator-candidate. For Ed25519 the go-amino prepend hex is 1624de6220")
 	fsAmount.String(FlagAmount, "1fermion", "Amount of coins to bond")
 	fsShares.String(FlagShares, "", "Amount of shares to unbond, either in decimal or keyword MAX (ex. 1.23456789, 99, MAX)")
 	fsDescription.String(FlagMoniker, "", "validator-candidate name")