diff --git a/contrib/launchtools/README.md b/contrib/launchtools/README.md
index 2aed6ba..ed3b0a2 100644
--- a/contrib/launchtools/README.md
+++ b/contrib/launchtools/README.md
@@ -45,6 +45,9 @@ minitiad launch $TARGET_NETWORK --with-config [path-to-config]
     "enable_oracle": true
   },
   "system_keys": {
+    "admin": {
+      "l2_address": "init12z54lfqgp7zapzuuk2m4h6mjz84qzca8j0wm4x"
+    },
     "validator": {
       "l2_address": "init12z54lfqgp7zapzuuk2m4h6mjz84qzca8j0wm4x",
       "mnemonic": "digital kingdom slim fall cereal aspect expose trade once antique treat spatial unfair trip silver diesel other friend invest valve human blouse decrease salt"
diff --git a/contrib/launchtools/config.go b/contrib/launchtools/config.go
index 2d39015..4fdabc8 100644
--- a/contrib/launchtools/config.go
+++ b/contrib/launchtools/config.go
@@ -339,6 +339,7 @@ func (gas *GenesisAccounts) Finalize(systemKeys SystemKeys) error {
 }
 
 type SystemKeys struct {
+	Admin           *SystemAccount `json:"admin,omitempty"`
 	Validator       *SystemAccount `json:"validator,omitempty"`
 	BridgeExecutor  *SystemAccount `json:"bridge_executor,omitempty"`
 	OutputSubmitter *SystemAccount `json:"output_submitter,omitempty"`
@@ -463,8 +464,19 @@ func (systemKeys *SystemKeys) Finalize(buf *bufio.Reader, batchSubmissionTarget
 			Mnemonic:  mnemonic,
 		}
 	}
+	if systemKeys.Admin == nil {
+		// use validator account as admin account if not set
+		systemKeys.Admin = &SystemAccount{
+			L1Address: systemKeys.Validator.L2Address,
+			L2Address: systemKeys.Validator.L2Address,
+			Mnemonic:  systemKeys.Validator.Mnemonic,
+		}
+	}
 
 	// validate all accounts
+	if systemKeys.Admin.L2Address == "" {
+		return errors.New("admin account not initialized")
+	}
 	if systemKeys.Validator.L2Address == "" || systemKeys.Validator.Mnemonic == "" {
 		return errors.New("validator account not initialized")
 	}
diff --git a/contrib/launchtools/steps/genesis.go b/contrib/launchtools/steps/genesis.go
index d849c99..22f8935 100644
--- a/contrib/launchtools/steps/genesis.go
+++ b/contrib/launchtools/steps/genesis.go
@@ -166,14 +166,17 @@ func initializeGenesis(
 	// Add fee whitelist to genesis
 	// whitelist specific operators for fee exemption
 	log.Info("adding fee whitelists",
-		"whitelist-len", 3,
+		"whitelist-len", 4,
 		"whitelists", strings.Join([]string{
+			config.SystemKeys.Admin.L2Address,
 			config.SystemKeys.Validator.L2Address,
 			config.SystemKeys.BridgeExecutor.L2Address,
 			config.SystemKeys.Challenger.L2Address,
 		}, ","),
 	)
+
 	opChildState, err = addFeeWhitelists(cdc, genesisAppState, []string{
+		config.SystemKeys.Admin.L2Address,
 		config.SystemKeys.Validator.L2Address,
 		config.SystemKeys.BridgeExecutor.L2Address,
 		config.SystemKeys.Challenger.L2Address,
@@ -200,10 +203,10 @@ func initializeGenesis(
 	// Step 5 -------------------------------------------------------------------------------------------
 	// Set admin address in the genesis parameter
 	log.Info("setting admin address",
-		"admin", config.SystemKeys.Validator.L2Address,
+		"admin", config.SystemKeys.Admin.L2Address,
 	)
 
-	opChildState, err = setOpChildAdminAddress(cdc, genesisAppState, config.SystemKeys.Validator.L2Address)
+	opChildState, err = setOpChildAdminAddress(cdc, genesisAppState, config.SystemKeys.Admin.L2Address)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to set bridge executor address")
 	}