diff --git a/docs/blog.md b/docs/blog.md
index fe3975697..f1f7a27dc 100644
--- a/docs/blog.md
+++ b/docs/blog.md
@@ -89,8 +89,9 @@ ng generate @scullyio/init:post --name="This is my post"
 
 The following table shows all available options:
 
-| option         | description                                            | default   |
-| -------------- | ------------------------------------------------------ | --------- |
-| `name`         | Define the name for the created post                   | 'blog-X'  |
-| `target`       | Define the target directory for the new post file      | 'blog'    |
-| `metaDataFile` | Use a meta data yaml template from a file for the post | undefined |
+| option         | description                                                                                                                                                                                            | default   |
+| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------- |
+| `name`         | Define the name for the created post                                                                                                                                                                   | 'blog-X'  |
+| `target`       | Define the target directory for the new post file                                                                                                                                                      | 'blog'    |
+| `metaDataFile` | Use a meta data yaml template from a file for the post                                                                                                                                                 | undefined |
+| `extension`    | define the file extension for the target file.<br>Out of the box Scully supports `adoc` and `md`.<br>You can handle other files by setting up your own [_File Handle Plugin_](plugins.md#file-plugin). | 'md'      |
diff --git a/libs/scully-schematics/src/add-post/index.ts b/libs/scully-schematics/src/add-post/index.ts
index 558c39b6c..f944991b0 100644
--- a/libs/scully-schematics/src/add-post/index.ts
+++ b/libs/scully-schematics/src/add-post/index.ts
@@ -12,15 +12,23 @@ import { yamlToJson, jsonToJaml, removeWrongCharacters } from '../utils/utils';
 export default function(options: Schema): Rule {
   return (host: Tree, context: SchematicContext) => {
     const name = options.name;
+    const extension = options.extension || 'md';
     const nameDasherized = options.name
       ? strings.dasherize(options.name)
       : 'blog-X';
     const targetDasherized = options.target
       ? strings.dasherize(options.target)
       : 'blog';
+
+    if (!/^[\w]+$/.test(extension)) {
+      throw new SchematicsException(
+        `${extension} is not a valid file extension`
+      );
+    }
+
     const filename = `./${targetDasherized}/${removeWrongCharacters(
       nameDasherized
-    )}.md`;
+    )}.${extension}`;
 
     let metaData = {
       title: '',
diff --git a/libs/scully-schematics/src/add-post/index_spec.ts b/libs/scully-schematics/src/add-post/index_spec.ts
index b16f5aa35..cecf17dff 100644
--- a/libs/scully-schematics/src/add-post/index_spec.ts
+++ b/libs/scully-schematics/src/add-post/index_spec.ts
@@ -120,4 +120,41 @@ describe('add-post', () => {
       expect(getFileContent(appTree, defaultExpectedFileName)).toEqual('foo');
     });
   });
+
+  describe('when specify a file extension', () => {
+    it('should use the specified file extension', async () => {
+      const extension = 'adoc';
+      const options = { ...defaultOptions, extension };
+      appTree = await customRunner
+        .runSchematicAsync('post', options, appTree)
+        .toPromise();
+      expect(appTree.files).toContain('/blog/foo-bar-baz.adoc');
+    });
+
+    it('should use `md` file extension by default', async () => {
+      const extension = '';
+      const options = { ...defaultOptions, extension };
+      appTree = await customRunner
+        .runSchematicAsync('post', options, appTree)
+        .toPromise();
+      expect(appTree.files).toContain('/blog/foo-bar-baz.md');
+    });
+
+    it('should throw an error when file extension is invalid', async () => {
+      const extension = 'invalid?ext';
+      const options = { ...defaultOptions, extension };
+      let error = '';
+      try {
+        appTree = await customRunner
+          .runSchematicAsync('post', options, appTree)
+          .toPromise();
+      } catch (e) {
+        error = e;
+      }
+      expect(appTree.files).toContain('/blog/foo-bar-baz.adoc');
+      expect(error).toMatch(
+        /Error: invalid\?ext is not a valid file extension/g
+      );
+    });
+  });
 });
diff --git a/libs/scully-schematics/src/add-post/schema.json b/libs/scully-schematics/src/add-post/schema.json
index fb6ce8521..2d94e89f5 100644
--- a/libs/scully-schematics/src/add-post/schema.json
+++ b/libs/scully-schematics/src/add-post/schema.json
@@ -16,6 +16,11 @@
       "x-prompt": "What's the target folder for this post?",
       "default": "blog"
     },
+    "extension": {
+      "type": "string",
+      "description": "define the file extension for the target file",
+      "default": "md"
+    },
     "metaDataFile": {
       "type": "string",
       "description": "use a meta data template file that's data will be added to the post",
diff --git a/libs/scully-schematics/src/add-post/schema.ts b/libs/scully-schematics/src/add-post/schema.ts
index d9331720c..8f2e5698d 100644
--- a/libs/scully-schematics/src/add-post/schema.ts
+++ b/libs/scully-schematics/src/add-post/schema.ts
@@ -10,6 +10,10 @@ export interface Schema {
    * define the target directory for the new post file
    */
   target?: string;
+  /**
+   * define the file extension for the target file
+   */
+  extension?: string;
   /**
    * use a meta data template file that's data will be added to the post
    */