--- a/testing/mozharness/configs/merge_day/central_to_beta.py
+++ b/testing/mozharness/configs/merge_day/central_to_beta.py
@@ -12,17 +12,17 @@ config = {
     "replacements": [
         # File, from, to
         ("{}{}".format(d, f),
         "ac_add_options --with-branding=mobile/android/branding/nightly",
         "ac_add_options --with-branding=mobile/android/branding/beta")
         for d in ["mobile/android/config/mozconfigs/android-api-16/",
                   "mobile/android/config/mozconfigs/android-x86/",
                   "mobile/android/config/mozconfigs/android-aarch64/"]
-        for f in ["debug", "nightly", "l10n-nightly"]
+        for f in ["debug", "nightly"]
     ] + [
         # File, from, to
         (f, "ac_add_options --with-branding=browser/branding/nightly",
         "ac_add_options --enable-official-branding")
         for f in ["browser/config/mozconfigs/linux32/l10n-mozconfig",
                   "browser/config/mozconfigs/linux64/l10n-mozconfig",
                   "browser/config/mozconfigs/win32/l10n-mozconfig",
                   "browser/config/mozconfigs/win64/l10n-mozconfig",