--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_stylo.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_stylo.py
@@ -35,9 +35,10 @@ config = {
         'PATH': '/tools/buildbot/bin:/usr/local/bin:/usr/lib64/ccache:/bin:\
 /usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/tools/git/bin:/tools/python27/bin:\
 /tools/python27-mercurial/bin:/home/cltbld/bin',
         'LD_LIBRARY_PATH': '/tools/gcc-4.3.3/installed/lib64:\
 %s/dist/bin' % (MOZ_OBJDIR,),
         'TINDERBOX_OUTPUT': '1',
     },
     'src_mozconfig': 'browser/config/mozconfigs/linux64/stylo',
+    'artifact_flag_build_variant_in_try': None,
 }

--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_stylo_debug.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_stylo_debug.py
@@ -35,9 +35,10 @@ config = {
         'PATH': '/tools/buildbot/bin:/usr/local/bin:/usr/lib64/ccache:/bin:\
 /usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/tools/git/bin:/tools/python27/bin:\
 /tools/python27-mercurial/bin:/home/cltbld/bin',
         'LD_LIBRARY_PATH': '/tools/gcc-4.3.3/installed/lib64:\
 %s/dist/bin' % (MOZ_OBJDIR,),
         'TINDERBOX_OUTPUT': '1',
     },
     'src_mozconfig': 'browser/config/mozconfigs/linux64/stylo-debug',
+    'artifact_flag_build_variant_in_try': None,
 }