diff --git a/types/stake.go b/types/stake.go
index e794ea7349..5a8a4fd435 100644
--- a/types/stake.go
+++ b/types/stake.go
@@ -45,6 +45,7 @@ type Validator interface {
 	GetConsAddr() ConsAddress     // validation consensus address
 	GetPower() Dec                // validation power
 	GetTokens() Dec               // validation tokens
+	GetCommission() Dec           // validator commission rate
 	GetDelegatorShares() Dec      // Total out standing delegator shares
 	GetBondHeight() int64         // height in which the validator became active
 }