--- a/testing/mozharness/configs/single_locale/jamun.py
+++ b/testing/mozharness/configs/single_locale/jamun.py
@@ -1,16 +1,15 @@
 import os
 
 config = {
     "nightly_build": True,
     "branch": "jamun",
     "en_us_binary_url": "http://archive.mozilla.org/pub/firefox/nightly/latest-mozilla-central",
     "update_channel": "nightly-jamun",
-    "latest_mar_dir": '/pub/firefox/nightly/latest-jamun-l10n',
 
     # l10n
     "hg_l10n_base": "https://hg.mozilla.org/releases/l10n/mozilla-aurora",
 
     # mar
     "mar_tools_url": os.environ.get(
         "MAR_TOOLS_URL",
         # Buildbot l10n fetches from ftp rather than setting an environ var