diff --git a/package-lock.json b/package-lock.json
index bc9e5fa..f816be8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "contentstack-cli-tsgen",
-  "version": "2.1.7",
+  "version": "2.1.8",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "contentstack-cli-tsgen",
-      "version": "2.1.7",
+      "version": "2.1.8",
       "license": "MIT",
       "dependencies": {
         "@contentstack/cli-command": "^1.2.9",
diff --git a/package.json b/package.json
index 280593a..d9892fb 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "contentstack-cli-tsgen",
   "description": "Generate TypeScript typings from a Stack.",
-  "version": "2.1.7",
+  "version": "2.1.8",
   "author": "Michael Davis",
   "bugs": "https://github.com/Contentstack-Solutions/contentstack-cli-tsgen/issues",
   "dependencies": {
diff --git a/src/commands/tsgen.ts b/src/commands/tsgen.ts
index 674930f..94f6aa9 100644
--- a/src/commands/tsgen.ts
+++ b/src/commands/tsgen.ts
@@ -51,6 +51,11 @@ export default class TypeScriptCodeGeneratorCommand extends Command {
       hidden: false,
       multiple: false,
     }),
+
+    'include-system-fields': flags.boolean({
+      description: 'include system fields in generated types',
+      default: false,
+    }),
   };
 
   async run() {
@@ -62,6 +67,7 @@ export default class TypeScriptCodeGeneratorCommand extends Command {
       const includeDocumentation = flags.doc
       const outputPath = flags.output
       const branch = flags.branch
+      const includeSystemFields = flags['include-system-fields']
 
       if (token.type !== 'delivery') {
         this.warn('Possibly using a management token. You may not be able to connect to your Stack. Please use a delivery token.')
@@ -91,7 +97,7 @@ export default class TypeScriptCodeGeneratorCommand extends Command {
           }))
         }
         schemas = schemas.concat(client.types)
-        const result = await tsgenRunner(outputPath, schemas, prefix, includeDocumentation)
+        const result = await tsgenRunner(outputPath, schemas, prefix, includeDocumentation, includeSystemFields)
         this.log(`Wrote ${result.definitions} Content Types to '${result.outputPath}'.`)
       } else {
         this.log('No Content Types exist in the Stack.')
diff --git a/src/lib/stack/builtins.ts b/src/lib/stack/builtins.ts
index 541dc80..902aa88 100644
--- a/src/lib/stack/builtins.ts
+++ b/src/lib/stack/builtins.ts
@@ -1,30 +1,52 @@
 // File and Link fields are additional, non-scalar, data types within a stack.
-export const defaultInterfaces = (prefix = '') => [
-  `export interface ${prefix}File { 
-        uid: string;
-        created_at: string;
-        updated_at: string;
-        created_by: string;
-        updated_by: string;
-        content_type: string;
-        file_size: string;
-        tags: string[];
-        filename: string;
-        url: string;
-        ACL: any[];
-        is_dir: boolean;
-        parent_uid: string;
-        _version: number;
-        title: string;
-        publish_details: {
+export const defaultInterfaces = (prefix = '', systemFields = false) => {
+    const defaultInterfaces = [
+        `export interface ${prefix}PublishDetails {
             environment: string;
             locale: string;
             time: string;
             user: string;
-        };
-    }`,
-  `export interface ${prefix}Link { 
-        title: string;
-        href: string;
-    }`,
-]
+        }`,
+        `export interface ${prefix}File { 
+              uid: string;
+              created_at: string;
+              updated_at: string;
+              created_by: string;
+              updated_by: string;
+              content_type: string;
+              file_size: string;
+              tags: string[];
+              filename: string;
+              url: string;
+              ACL: any[];
+              is_dir: boolean;
+              parent_uid: string;
+              _version: number;
+              title: string;
+              publish_details: ${prefix}PublishDetails;
+          }`,
+        `export interface ${prefix}Link { 
+              title: string;
+              href: string;
+          }`
+      ]
+    if (systemFields) {
+        defaultInterfaces.push(
+            `export interface ${prefix}SystemFields {
+            uid?: string;
+            created_at?: string;
+            updated_at?: string;
+            created_by?: string;
+            updated_by?: string;
+            _content_type_uid?: string;
+            tags?: string[];
+            ACL?: any[];
+            _version?: number;
+            _in_progress?: boolean;
+            locale?: string;
+            publish_details?: ${prefix}PublishDetails[];
+            title?: string;
+        }`)
+    }
+    return defaultInterfaces;
+}
diff --git a/src/lib/stack/schema.ts b/src/lib/stack/schema.ts
index e02e8a4..baa12e0 100644
--- a/src/lib/stack/schema.ts
+++ b/src/lib/stack/schema.ts
@@ -27,6 +27,7 @@ export type Block = {
 export type GlobalField = {
   reference_to: string;
   schema: Schema;
+  schema_type?: string;
   _version?: number
 } & FieldOptions;
 
@@ -50,7 +51,8 @@ export type Field = GlobalField &
   ReferenceField &
   GroupField &
   EnumField &
-  BlockField;
+  BlockField &
+  { field_metadata: FieldMetaData };
 export type Schema = Array<Field>;
 
 export type ContentType = {
@@ -61,3 +63,7 @@ export type ContentType = {
   data_type?: string;
   schema_type?: string;
 } & Identifier;
+
+export type FieldMetaData = {
+  ref_multiple?: boolean; 
+}
diff --git a/src/lib/tsgen/factory.ts b/src/lib/tsgen/factory.ts
index 75929ee..f90a63d 100644
--- a/src/lib/tsgen/factory.ts
+++ b/src/lib/tsgen/factory.ts
@@ -8,6 +8,7 @@ export type TSGenOptions = {
   naming?: {
     prefix: string;
   };
+  systemFields?: boolean;
 };
 
 export type TSGenResult = {
@@ -54,6 +55,7 @@ const defaultOptions: TSGenOptions = {
   naming: {
     prefix: '',
   },
+  systemFields: false
 }
 
 export default function (userOptions: TSGenOptions) {
@@ -115,9 +117,14 @@ export default function (userOptions: TSGenOptions) {
   }
 
   function define_interface(
-    contentType: ContentstackTypes.ContentType | ContentstackTypes.GlobalField
+    contentType: ContentstackTypes.ContentType | ContentstackTypes.GlobalField,
+    systemFields = false
   ) {
-    return ['export interface', name_type(contentType.data_type === 'global_field' ? (contentType.reference_to as string) : contentType.uid)].join(' ')
+    const interface_declaration = ['export interface', name_type(contentType.data_type === 'global_field' ? (contentType.reference_to as string) : contentType.uid)]
+    if (systemFields && contentType.schema_type !== "global_field") {
+      interface_declaration.push('extends', name_type('SystemFields'))
+    }
+    return interface_declaration.join(' ')
   }
 
   function op_array(type: string, field: ContentstackTypes.Field) {
@@ -226,7 +233,7 @@ export default function (userOptions: TSGenOptions) {
   ) {
     return [
       options.docgen.interface(contentType.description),
-      define_interface(contentType),
+      define_interface(contentType, options.systemFields),
       '{',
       ['/**', "Version", '*/'].join(' '),
       [`version: `,contentType._version,';'].join(' '),
@@ -302,7 +309,7 @@ export default function (userOptions: TSGenOptions) {
       references.push(name_type(field.reference_to))
     }
 
-    return ['(', references.join(' | '), ')', '[]'].join('')
+    return ['(', references.join(' | '), ')', field.field_metadata?.ref_multiple ? '[]' : ''].join('')
   }
 
   return function (contentType: ContentstackTypes.ContentType): TSGenResult|any {
diff --git a/src/lib/tsgen/runner.ts b/src/lib/tsgen/runner.ts
index ab4ce11..3bd902c 100644
--- a/src/lib/tsgen/runner.ts
+++ b/src/lib/tsgen/runner.ts
@@ -26,7 +26,7 @@ function createOutputPath(outputFile: string) {
   return outputPath
 }
 
-export default async function tsgenRunner(outputFile: string, contentTypes: any[], prefix = '', includeDocumentation = true) {
+export default async function tsgenRunner(outputFile: string, contentTypes: any[], prefix = '', includeDocumentation = true, systemFields = false) {
   const docgen: DocumentationGenerator = includeDocumentation ? new JSDocumentationGenerator() : new NullDocumentationGenerator()
 
   const outputPath = createOutputPath(outputFile)
@@ -38,6 +38,7 @@ export default async function tsgenRunner(outputFile: string, contentTypes: any[
     naming: {
       prefix,
     },
+    systemFields
   })
 
   for (const contentType of contentTypes) {
@@ -56,7 +57,7 @@ export default async function tsgenRunner(outputFile: string, contentTypes: any[
 
   const output = await format(
     [
-      defaultInterfaces(prefix).join('\n\n'),
+      defaultInterfaces(prefix, systemFields).join('\n\n'),
       [...globalFields].join('\n\n'),
       definitions.join('\n\n'),
     ].join('\n\n')
diff --git a/tests/tsgen/references.test.ts b/tests/tsgen/references.test.ts
index 0d70a5d..acf9d7b 100644
--- a/tests/tsgen/references.test.ts
+++ b/tests/tsgen/references.test.ts
@@ -1,27 +1,27 @@
-const testData = require('./references.ct')
+const testData = require("./references.ct");
 
-import NullDocumentationGenerator from '../../src/lib/tsgen/docgen/nulldoc'
-import tsgenFactory from '../../src/lib/tsgen/factory'
+import NullDocumentationGenerator from "../../src/lib/tsgen/docgen/nulldoc";
+import tsgenFactory from "../../src/lib/tsgen/factory";
 
 const tsgen = tsgenFactory({
   docgen: new NullDocumentationGenerator(),
   naming: {
-    prefix: 'I',
+    prefix: "I",
   },
-})
+});
 
-describe('references', () => {
-  const result = tsgen(testData.references)
+describe("references", () => {
+  const result = tsgen(testData.references);
 
-  test('metadata', () => {
-    const contentTypes = [...result.metadata.dependencies.contentTypes]
+  test("metadata", () => {
+    const contentTypes = [...result.metadata.dependencies.contentTypes];
 
     expect(contentTypes).toEqual(
-      expect.arrayContaining(['IReferenceChild', 'IBoolean', 'IBuiltinExample'])
-    )
-  })
+      expect.arrayContaining(["IReferenceChild", "IBoolean", "IBuiltinExample"])
+    );
+  });
 
-  test('definition', () => {
+  test("definition", () => {
     expect(result.definition).toMatchInlineSnapshot(`
       "export interface IReferenceParent
       {
@@ -29,9 +29,9 @@ describe('references', () => {
       version:  5 ;
       title: string;
       url: string;
-      single_reference: (IReferenceChild)[];
+      single_reference: (IReferenceChild);
       multiple_reference?: (IReferenceChild | IBoolean | IBuiltinExample)[];
       }"
-    `)
-  })
-})
+    `);
+  });
+});