diff --git a/x/staking/keeper/msg_server.go b/x/staking/keeper/msg_server.go
index 4743316b09..7ae6a679e2 100644
--- a/x/staking/keeper/msg_server.go
+++ b/x/staking/keeper/msg_server.go
@@ -302,6 +302,7 @@ func (k msgServer) Delegate(ctx context.Context, msg *types.MsgDelegate) (*types
 		sdk.NewEvent(
 			types.EventTypeDelegate,
 			sdk.NewAttribute(types.AttributeKeyValidator, msg.ValidatorAddress),
+			sdk.NewAttribute(types.AttributeKeyDelegator, msg.DelegatorAddress),
 			sdk.NewAttribute(sdk.AttributeKeyAmount, msg.Amount.String()),
 			sdk.NewAttribute(types.AttributeKeyNewShares, newShares.String()),
 		),
@@ -446,6 +447,7 @@ func (k msgServer) Undelegate(ctx context.Context, msg *types.MsgUndelegate) (*t
 		sdk.NewEvent(
 			types.EventTypeUnbond,
 			sdk.NewAttribute(types.AttributeKeyValidator, msg.ValidatorAddress),
+			sdk.NewAttribute(types.AttributeKeyDelegator, msg.DelegatorAddress),
 			sdk.NewAttribute(sdk.AttributeKeyAmount, undelegatedCoin.String()),
 			sdk.NewAttribute(types.AttributeKeyCompletionTime, completionTime.Format(time.RFC3339)),
 		),