diff --git a/src/routes/index.ts b/src/routes/index.ts
index d6e5b12..1e9c681 100644
--- a/src/routes/index.ts
+++ b/src/routes/index.ts
@@ -7,7 +7,7 @@ import {
 import { ExecutionResult, isRequestQuery, isFileTree } from '../types'
 import path from 'path'
 import {
-  addExtensionIfNotFound,
+  addSasExtensionIfNotFound,
   getTmpFilesFolderPath,
   getTmpFolderPath,
   makeFilesNamesMap
@@ -63,7 +63,7 @@ router.get('/SASjsExecutor/do', async (req, res) => {
       .replace(new RegExp('/', 'g'), path.sep)
 
     // If no extension provided, add .sas extension
-    sasCodePath += addExtensionIfNotFound(sasCodePath, 'sas')
+    sasCodePath += addSasExtensionIfNotFound(sasCodePath)
 
     await new ExecutionController()
       .execute(sasCodePath, undefined, undefined, { ...req.query })
@@ -96,7 +96,7 @@ router.post(
         .replace(new RegExp('/', 'g'), path.sep)
 
       // If no extension provided, add .sas extension
-      sasCodePath += addExtensionIfNotFound(sasCodePath, 'sas')
+      sasCodePath += addSasExtensionIfNotFound(sasCodePath)
 
       let filesNamesMap = null
 
diff --git a/src/utils/file.ts b/src/utils/file.ts
index 6271316..ead26e0 100644
--- a/src/utils/file.ts
+++ b/src/utils/file.ts
@@ -25,7 +25,8 @@ export const generateUniqueFileName = (fileName: string, extension = '') =>
     extension
   ].join('')
 
-export const addExtensionIfNotFound = (value: string, extension: string) => {
+export const addSasExtensionIfNotFound = (value: string) => {
+  const extension = 'sas'
   const valueSplit = value.split('.')
 
   if (valueSplit.length < 2) return `.${extension}`
diff --git a/src/utils/spec/file.spec.ts b/src/utils/spec/file.spec.ts
index 06d7511..07616ac 100644
--- a/src/utils/spec/file.spec.ts
+++ b/src/utils/spec/file.spec.ts
@@ -1,11 +1,11 @@
-import { addExtensionIfNotFound } from '..'
+import { addSasExtensionIfNotFound } from '..'
 
 describe('file utils', () => {
   it('should add extension if missing', async () => {
-    expect(addExtensionIfNotFound('test', 'ext')).toEqual('.ext')
-    expect(addExtensionIfNotFound('test.test', 'ext')).toEqual('.ext')
-    expect(addExtensionIfNotFound('test.sas', 'ext')).toEqual('')
-    expect(addExtensionIfNotFound('test.test.test', 'ext')).toEqual('.ext')
-    expect(addExtensionIfNotFound('test.test.test.sas', 'ext')).toEqual('')
+    expect(addSasExtensionIfNotFound('test')).toEqual('.sas')
+    expect(addSasExtensionIfNotFound('test.test')).toEqual('.sas')
+    expect(addSasExtensionIfNotFound('test.sas')).toEqual('')
+    expect(addSasExtensionIfNotFound('test.test.test')).toEqual('.sas')
+    expect(addSasExtensionIfNotFound('test.test.test.sas')).toEqual('')
   })
 })