1 files changed, 4 insertions, 2 deletions

diff --git a/server/helpers/custom-validators/video-captions.ts b/server/helpers/custom-validators/video-captions.ts
index 6a9c6d75c..177e9e86e 100644
--- a/server/helpers/custom-validators/video-captions.ts
+++ b/server/helpers/custom-validators/video-captions.ts
@@ -1,4 +1,4 @@
-import { CONSTRAINTS_FIELDS, VIDEO_CAPTIONS_MIMETYPE_EXT, VIDEO_LANGUAGES, VIDEO_MIMETYPE_EXT } from '../../initializers'
+import { CONSTRAINTS_FIELDS, VIDEO_CAPTIONS_MIMETYPE_EXT, VIDEO_LANGUAGES } from '../../initializers'
 import { exists, isFileValid } from './misc'
 import { Response } from 'express'
 import { VideoModel } from '../../models/video/video'
@@ -8,7 +8,9 @@ function isVideoCaptionLanguageValid (value: any) {
   return exists(value) && VIDEO_LANGUAGES[ value ] !== undefined
 }
 
-const videoCaptionTypes = Object.keys(VIDEO_CAPTIONS_MIMETYPE_EXT).map(m => `(${m})`)
+const videoCaptionTypes = Object.keys(VIDEO_CAPTIONS_MIMETYPE_EXT)
+                                .concat([ 'application/octet-stream' ]) // MacOS sends application/octet-stream ><
+                                .map(m => `(${m})`)
 const videoCaptionTypesRegex = videoCaptionTypes.join('|')
 function isVideoCaptionFile (files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[], field: string) {
   return isFileValid(files, videoCaptionTypesRegex, field, CONSTRAINTS_FIELDS.VIDEO_CAPTIONS.CAPTION_FILE.FILE_SIZE.max)