diff --git a/clients/js/jito_tip_router/instructions/initializeConfig.ts b/clients/js/jito_tip_router/instructions/initializeConfig.ts
index e36327c1..e5c99aab 100644
--- a/clients/js/jito_tip_router/instructions/initializeConfig.ts
+++ b/clients/js/jito_tip_router/instructions/initializeConfig.ts
@@ -20,10 +20,13 @@ import {
   type Decoder,
   type Encoder,
   type IAccountMeta,
+  type IAccountSignerMeta,
   type IInstruction,
   type IInstructionWithAccounts,
   type IInstructionWithData,
   type ReadonlyAccount,
+  type ReadonlySignerAccount,
+  type TransactionSigner,
   type WritableAccount,
 } from '@solana/web3.js';
 import { JITO_TIP_ROUTER_PROGRAM_ADDRESS } from '../programs';
@@ -56,7 +59,8 @@ export type InitializeConfigInstruction<
         : TAccountConfig,
       TAccountNcn extends string ? ReadonlyAccount<TAccountNcn> : TAccountNcn,
       TAccountNcnAdmin extends string
-        ? WritableAccount<TAccountNcnAdmin>
+        ? ReadonlySignerAccount<TAccountNcnAdmin> &
+            IAccountSignerMeta<TAccountNcnAdmin>
         : TAccountNcnAdmin,
       TAccountFeeWallet extends string
         ? ReadonlyAccount<TAccountFeeWallet>
@@ -129,7 +133,7 @@ export type InitializeConfigInput<
 > = {
   config: Address<TAccountConfig>;
   ncn: Address<TAccountNcn>;
-  ncnAdmin: Address<TAccountNcnAdmin>;
+  ncnAdmin: TransactionSigner<TAccountNcnAdmin>;
   feeWallet: Address<TAccountFeeWallet>;
   tieBreakerAdmin: Address<TAccountTieBreakerAdmin>;
   restakingProgramId: Address<TAccountRestakingProgramId>;
@@ -177,7 +181,7 @@ export function getInitializeConfigInstruction<
   const originalAccounts = {
     config: { value: input.config ?? null, isWritable: true },
     ncn: { value: input.ncn ?? null, isWritable: false },
-    ncnAdmin: { value: input.ncnAdmin ?? null, isWritable: true },
+    ncnAdmin: { value: input.ncnAdmin ?? null, isWritable: false },
     feeWallet: { value: input.feeWallet ?? null, isWritable: false },
     tieBreakerAdmin: {
       value: input.tieBreakerAdmin ?? null,
diff --git a/clients/rust/jito_tip_router/src/generated/instructions/initialize_config.rs b/clients/rust/jito_tip_router/src/generated/instructions/initialize_config.rs
index d9cbd3ee..2e718af4 100644
--- a/clients/rust/jito_tip_router/src/generated/instructions/initialize_config.rs
+++ b/clients/rust/jito_tip_router/src/generated/instructions/initialize_config.rs
@@ -44,9 +44,9 @@ impl InitializeConfig {
         accounts.push(solana_program::instruction::AccountMeta::new_readonly(
             self.ncn, false,
         ));
-        accounts.push(solana_program::instruction::AccountMeta::new(
+        accounts.push(solana_program::instruction::AccountMeta::new_readonly(
             self.ncn_admin,
-            false,
+            true,
         ));
         accounts.push(solana_program::instruction::AccountMeta::new_readonly(
             self.fee_wallet,
@@ -108,7 +108,7 @@ pub struct InitializeConfigInstructionArgs {
 ///
 ///   0. `[writable]` config
 ///   1. `[]` ncn
-///   2. `[writable]` ncn_admin
+///   2. `[signer]` ncn_admin
 ///   3. `[]` fee_wallet
 ///   4. `[]` tie_breaker_admin
 ///   5. `[]` restaking_program_id
@@ -336,9 +336,9 @@ impl<'a, 'b> InitializeConfigCpi<'a, 'b> {
             *self.ncn.key,
             false,
         ));
-        accounts.push(solana_program::instruction::AccountMeta::new(
+        accounts.push(solana_program::instruction::AccountMeta::new_readonly(
             *self.ncn_admin.key,
-            false,
+            true,
         ));
         accounts.push(solana_program::instruction::AccountMeta::new_readonly(
             *self.fee_wallet.key,
@@ -399,7 +399,7 @@ impl<'a, 'b> InitializeConfigCpi<'a, 'b> {
 ///
 ///   0. `[writable]` config
 ///   1. `[]` ncn
-///   2. `[writable]` ncn_admin
+///   2. `[signer]` ncn_admin
 ///   3. `[]` fee_wallet
 ///   4. `[]` tie_breaker_admin
 ///   5. `[]` restaking_program_id
diff --git a/idl/jito_tip_router.json b/idl/jito_tip_router.json
index 787445c6..4078fd72 100644
--- a/idl/jito_tip_router.json
+++ b/idl/jito_tip_router.json
@@ -17,8 +17,8 @@
         },
         {
           "name": "ncnAdmin",
-          "isMut": true,
-          "isSigner": false
+          "isMut": false,
+          "isSigner": true
         },
         {
           "name": "feeWallet",