diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4fba4389306..268b51aec126 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ## [Unreleased]
 
 ### Features
+
 * [\#10977](https://github.com/cosmos/cosmos-sdk/pull/10977) Now every cosmos message protobuf definition must be extended with a ``cosmos.msg.v1.signer`` option to signal the signer fields in a language agnostic way.
 * [\#10710](https://github.com/cosmos/cosmos-sdk/pull/10710) Chain-id shouldn't be required for creating a transaction with both --generate-only and --offline flags.
 * [\#10703](https://github.com/cosmos/cosmos-sdk/pull/10703) Create a new grantee account, if the grantee of an authorization does not exist.
@@ -154,6 +155,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Bug Fixes
 
+* (cli) [\#11065](https://github.com/cosmos/cosmos-sdk/pull/11065) Ensure the `tendermint-validator-set` query command respects the `-o` output flag.
 * (grpc) [\#10985](https://github.com/cosmos/cosmos-sdk/pull/10992) The `/cosmos/tx/v1beta1/txs/{hash}` endpoint returns a 404 when a tx does not exist.
 * (rosetta) [\#10340](https://github.com/cosmos/cosmos-sdk/pull/10340) Use `GenesisChunked(ctx)` instead `Genesis(ctx)` to get genesis block height
 * [#10180](https://github.com/cosmos/cosmos-sdk/issues/10180) Documentation: make references to Cosmos SDK consistent
diff --git a/client/rpc/validators.go b/client/rpc/validators.go
index 23a39c9ab1be..1fb7e796d2e6 100644
--- a/client/rpc/validators.go
+++ b/client/rpc/validators.go
@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	"github.com/spf13/cobra"
+	tmcli "github.com/tendermint/tendermint/libs/cli"
 	tmtypes "github.com/tendermint/tendermint/types"
 
 	"github.com/cosmos/cosmos-sdk/client"
@@ -30,17 +31,18 @@ func ValidatorCommand() *cobra.Command {
 			if err != nil {
 				return err
 			}
+
 			var height *int64
 
 			// optional height
 			if len(args) > 0 {
-				h, err := strconv.Atoi(args[0])
+				val, err := strconv.ParseInt(args[0], 10, 64)
 				if err != nil {
 					return err
 				}
-				if h > 0 {
-					tmp := int64(h)
-					height = &tmp
+
+				if val > 0 {
+					height = &val
 				}
 			}
 
@@ -56,8 +58,8 @@ func ValidatorCommand() *cobra.Command {
 		},
 	}
 
-	cmd.Flags().StringP(flags.FlagNode, "n", "tcp://localhost:26657", "Node to connect to")
-	cmd.Flags().String(flags.FlagKeyringBackend, flags.DefaultKeyringBackend, "Select keyring's backend (os|file|kwallet|pass|test)")
+	cmd.Flags().String(flags.FlagNode, "tcp://localhost:26657", "<host>:<port> to Tendermint RPC interface for this chain")
+	cmd.Flags().StringP(tmcli.OutputFlag, "o", "text", "Output format (text|json)")
 	cmd.Flags().Int(flags.FlagPage, query.DefaultPage, "Query a specific page of paginated results")
 	cmd.Flags().Int(flags.FlagLimit, 100, "Query number of results returned per page")