diff --git a/lib/cli/src/detect.js b/lib/cli/src/detect.js
index b965c0c3445..47d39a356be 100644
--- a/lib/cli/src/detect.js
+++ b/lib/cli/src/detect.js
@@ -4,7 +4,7 @@ import fs from 'fs';
 import types, {
   supportedTemplates,
   supportedFrameworks,
-  supportedLanguages,
+  SUPPORTED_LANGUAGES,
 } from './project_types';
 import { getBowerJson, getPackageJson } from './helpers';
 
@@ -92,7 +92,7 @@ export function isStorybookInstalled(dependencies, force) {
 }
 
 export function detectLanguage() {
-  let language = supportedLanguages.JAVASCRIPT;
+  let language = SUPPORTED_LANGUAGES.JAVASCRIPT;
   const packageJson = getPackageJson();
   const bowerJson = getBowerJson();
   if (!packageJson && !bowerJson) {
@@ -100,7 +100,7 @@ export function detectLanguage() {
   }
 
   if (hasDependency(packageJson || bowerJson, 'typescript')) {
-    language = supportedLanguages.TYPESCRIPT;
+    language = SUPPORTED_LANGUAGES.TYPESCRIPT;
   }
 
   return language;
diff --git a/lib/cli/src/detect.test.js b/lib/cli/src/detect.test.js
index ea86d9fa27a..c9ae155bc4d 100644
--- a/lib/cli/src/detect.test.js
+++ b/lib/cli/src/detect.test.js
@@ -2,7 +2,7 @@ import fs from 'fs';
 
 import { getBowerJson, getPackageJson } from './helpers';
 import { isStorybookInstalled, detectFrameworkPreset, detect, detectLanguage } from './detect';
-import projectTypes, { supportedFrameworks, supportedLanguages } from './project_types';
+import projectTypes, { supportedFrameworks, SUPPORTED_LANGUAGES } from './project_types';
 
 jest.mock('./helpers', () => ({
   getBowerJson: jest.fn(),
@@ -215,12 +215,12 @@ describe('Detect', () => {
         typescript: '1.0.0',
       },
     }));
-    expect(detectLanguage()).toBe(supportedLanguages.TYPESCRIPT);
+    expect(detectLanguage()).toBe(SUPPORTED_LANGUAGES.TYPESCRIPT);
   });
 
   it(`should return language javascript by default`, () => {
     getPackageJson.mockImplementation(() => true);
-    expect(detectLanguage()).toBe(supportedLanguages.JAVASCRIPT);
+    expect(detectLanguage()).toBe(SUPPORTED_LANGUAGES.JAVASCRIPT);
   });
 
   describe('isStorybookInstalled should return', () => {
diff --git a/lib/cli/src/initiate.js b/lib/cli/src/initiate.js
index 18572995913..4c94efddc3d 100644
--- a/lib/cli/src/initiate.js
+++ b/lib/cli/src/initiate.js
@@ -6,7 +6,7 @@ import { hasYarn } from './has_yarn';
 import types, {
   installableProjectTypes,
   STORY_FORMAT,
-  supportedLanguages,
+  SUPPORTED_LANGUAGES,
 } from './project_types';
 import {
   commandLog,
@@ -47,7 +47,7 @@ const installStorybook = (projectType, options) => {
   };
 
   const defaultStoryFormat =
-    detectLanguage() === supportedLanguages.TYPESCRIPT
+    detectLanguage() === SUPPORTED_LANGUAGES.TYPESCRIPT
       ? STORY_FORMAT.CSF_TYPESCRIPT
       : STORY_FORMAT.CSF;
 
diff --git a/lib/cli/src/project_types.js b/lib/cli/src/project_types.js
index 08cb0f3cc72..4b531dbe427 100644
--- a/lib/cli/src/project_types.js
+++ b/lib/cli/src/project_types.js
@@ -29,7 +29,7 @@ export const STORY_FORMAT = {
   MDX: 'mdx',
 };
 
-export const supportedLanguages = {
+export const SUPPORTED_LANGUAGES = {
   JAVASCRIPT: 'javascript',
   TYPESCRIPT: 'typescript',
 };