diff --git a/examples/media_upload.py b/examples/media_upload.py
index 125578d..7da4dc0 100644
--- a/examples/media_upload.py
+++ b/examples/media_upload.py
@@ -17,7 +17,7 @@
 # https://developer.twitter.com/en/docs/ads/creatives/guides/media-library
 resource = '/1.1/media/upload.json'
 params = {
-    'additional_owners': '756201191646691328',
+    'additional_owners': ACCOUNT_ID,
     'media_category': MEDIA_CATEGORY.TWEET_IMAGE
 }
 domain = 'https://upload.twitter.com'