diff --git a/packages/aws-cdk-lib/aws-kms/lib/key.ts b/packages/aws-cdk-lib/aws-kms/lib/key.ts
index f29950b6dc763..ba5d33c2988e9 100644
--- a/packages/aws-cdk-lib/aws-kms/lib/key.ts
+++ b/packages/aws-cdk-lib/aws-kms/lib/key.ts
@@ -263,7 +263,7 @@ abstract class KeyBase extends Resource implements IKey {
     const bucketStack = Stack.of(this);
     const identityStack = Stack.of(grantee.grantPrincipal);
 
-    if (FeatureFlags.of(this).isEnabled(cxapi.KMS_CROSS_ACCOUNT_REGION_KMS_KEY_POLICY)) {
+    if (FeatureFlags.of(this).isEnabled(cxapi.KMS_REDUCE_CROSS_ACCOUNT_REGION_POLICY_SCOPE)) {
       // if two compared stacks have the same region, this should return 'false' since it's from the
       // same region; if two stacks have different region, then compare env.region
       return bucketStack.region !== identityStack.region && this.env.region !== identityStack.region;
@@ -278,7 +278,7 @@ abstract class KeyBase extends Resource implements IKey {
     const bucketStack = Stack.of(this);
     const identityStack = Stack.of(grantee.grantPrincipal);
 
-    if (FeatureFlags.of(this).isEnabled(cxapi.KMS_CROSS_ACCOUNT_REGION_KMS_KEY_POLICY)) {
+    if (FeatureFlags.of(this).isEnabled(cxapi.KMS_REDUCE_CROSS_ACCOUNT_REGION_POLICY_SCOPE)) {
       // if two compared stacks have the same region, this should return 'false' since it's from the
       // same region; if two stacks have different region, then compare env.account
       return bucketStack.account !== identityStack.account && this.env.account !== identityStack.account;
diff --git a/packages/aws-cdk-lib/aws-kms/test/key.test.ts b/packages/aws-cdk-lib/aws-kms/test/key.test.ts
index 29a9540a90106..3493c31dff3ac 100644
--- a/packages/aws-cdk-lib/aws-kms/test/key.test.ts
+++ b/packages/aws-cdk-lib/aws-kms/test/key.test.ts
@@ -83,7 +83,7 @@ describe('key policies', () => {
   });
 
   test('cross region key with iam role grant', () => {
-    const app = new cdk.App({ context: { [cxapi.KMS_CROSS_ACCOUNT_REGION_KMS_KEY_POLICY]: true } });
+    const app = new cdk.App({ context: { [cxapi.KMS_REDUCE_CROSS_ACCOUNT_REGION_POLICY_SCOPE]: true } });
     const stack = new cdk.Stack(app, 'test-stack', { env: { account: '000000000000', region: 'us-west-2' } });
     const key = kms.Key.fromKeyArn(
       stack,
@@ -113,7 +113,7 @@ describe('key policies', () => {
   });
 
   test('cross region key with iam role grant when feature flag is disabled', () => {
-    const app = new cdk.App({ context: { [cxapi.KMS_CROSS_ACCOUNT_REGION_KMS_KEY_POLICY]: false } });
+    const app = new cdk.App({ context: { [cxapi.KMS_REDUCE_CROSS_ACCOUNT_REGION_POLICY_SCOPE]: false } });
     const stack = new cdk.Stack(app, 'test-stack', { env: { account: '000000000000', region: 'us-west-2' } });
     const key = kms.Key.fromKeyArn(
       stack,