diff --git a/README.md b/README.md
index b6903df1342..e13c12effdf 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ In order to deploy both the stacks the user needs to provide a set of required a
 | enableRemoteStore      | Optional    | boolean | Boolean flag to enable Remote Store feature  e.g., `--context enableRemoteStore=true`. See [Enable Remote Store Feature](#enable-remote-store-feature) for more details. Defaults to false                                                                                                       |
 | storageVolumeType      | Optional    | string  | EBS volume type for all the nodes (data, ml, cluster manager). Defaults to gp2. See `lib/opensearch-config/node-config.ts` for available options. E.g., `-c storageVolumeType=gp3`. For SSD based instance (i.e. i3 family), it is used for root volume configuration.                           |
 | customRoleArn          | Optional    | string  | User provided IAM role arn to be used as ec2 instance profile. `-c customRoleArn=arn:aws:iam::<AWS_ACCOUNT_ID>:role/<ROLE_NAME>`                                                                                                                                                                 |
-| customConfigFiles          | Optional    | string  | You can provide an entire config file to be overwritten or added to OpenSearch and OpenSearch Dashboards. Pass string in the form of JSON with key as local path to the config file to read from and value as file on the server to overwrite/add. Note that the values in the JSON needs to have prefix of `opensearch` or `opensearch-dashboards`. Example: `-c customRoleArn='{"opensearch-config/config.yml": "opensearch/config/opensearch-security/config.yml", "opensearch-config/role_mapping.yml":"opensearch/config/opensearch-security/roles_mapping.yml", "/roles.yml": "opensearch/config/opensearch-security/roles.yml"}'`                                                                                                                                                                 |
+| customConfigFiles          | Optional    | string  | You can provide an entire config file to be overwritten or added to OpenSearch and OpenSearch Dashboards. Pass string in the form of JSON with key as local path to the config file to read from and value as file on the server to overwrite/add. Note that the values in the JSON needs to have prefix of `opensearch` or `opensearch-dashboards`. Example: `-c customConfigFiles='{"opensearch-config/config.yml": "opensearch/config/opensearch-security/config.yml", "opensearch-config/role_mapping.yml":"opensearch/config/opensearch-security/roles_mapping.yml", "/roles.yml": "opensearch/config/opensearch-security/roles.yml"}'`                                                                                                                                                                 |
 
 * Before starting this step, ensure that your AWS CLI is correctly configured with access credentials.
 * Also ensure that you're running these commands in the current directory
diff --git a/lib/infra/infra-stack.ts b/lib/infra/infra-stack.ts
index 1540d3b70de..97f36be37e0 100644
--- a/lib/infra/infra-stack.ts
+++ b/lib/infra/infra-stack.ts
@@ -654,7 +654,7 @@ export class InfraStack extends Stack {
           }));
       }
 
-      // Startinng OpenSearch-Dashboards
+      // Starting OpenSearch-Dashboards
       cfnInitConfig.push(InitCommand.shellCommand('set -ex;cd opensearch-dashboards;'
         + 'sudo -u ec2-user nohup ./bin/opensearch-dashboards > dashboard_install.log 2>&1 &', {
         cwd: '/home/ec2-user',
diff --git a/test/os-cluster.test.ts b/test/os-cluster.test.ts
index 15f9cc63483..a40776aa4a3 100644
--- a/test/os-cluster.test.ts
+++ b/test/os-cluster.test.ts
@@ -490,4 +490,37 @@ test('Test multi-node cluster with custom IAM Role', () => {
   infraTemplate.hasResourceProperties('AWS::IAM::InstanceProfile', {
     Roles: ['customRoleName'],
   });
-});
\ No newline at end of file
+});
+
+test('Throw error on incorrect JSON', () => {
+  const app = new App({
+    context: {
+      securityDisabled: true,
+      minDistribution: false,
+      distributionUrl: 'www.example.com',
+      cpuArch: 'x64',
+      singleNodeCluster: false,
+      dashboardsUrl: 'www.example.com',
+      distVersion: '1.0.0',
+      serverAccessType: 'ipv4',
+      restrictServerAccessTo: 'all',
+      additionalConfig: '{ "name": "John Doe", "age": 30, "email": "johndoe@example.com" }',
+      additionalOsdConfig: '{ "something.enabled": "true", "something_else.enabled": "false" }',
+      // eslint-disable-next-line max-len
+      customConfigFiles: '{"test/data/config.yml": opensearch/config/opensearch-security/config.yml"}',
+    },
+  });
+  // WHEN
+  try {
+    const testStack = new OsClusterEntrypoint(app, {
+      env: { account: 'test-account', region: 'us-east-1' },
+    });
+
+    // eslint-disable-next-line no-undef
+    fail('Expected an error to be thrown');
+  } catch (error) {
+    expect(error).toBeInstanceOf(Error);
+    // eslint-disable-next-line max-len
+    expect(error.message).toEqual('Encountered following error while parsing customConfigFiles json parameter: SyntaxError: Unexpected token o in JSON at position 25');
+  }
+});