--- a/python/mozbuild/mozbuild/mozinfo.py
+++ b/python/mozbuild/mozbuild/mozinfo.py
@@ -91,16 +91,17 @@ def build_dict(config, env=os.environ):
     d['tsan'] = substs.get('MOZ_TSAN') == '1'
     d['telemetry'] = substs.get('MOZ_TELEMETRY_REPORTING') == '1'
     d['tests_enabled'] = substs.get('ENABLE_TESTS') == "1"
     d['bin_suffix'] = substs.get('BIN_SUFFIX', '')
     d['addon_signing'] = substs.get('MOZ_ADDON_SIGNING') == '1'
     d['require_signing'] = substs.get('MOZ_REQUIRE_SIGNING') == '1'
     d['official'] = bool(substs.get('MOZILLA_OFFICIAL'))
     d['updater'] = substs.get('MOZ_UPDATER') == '1'
+    d['artifact'] = substs.get('MOZ_ARTIFACT_BUILDS') == '1'
 
     def guess_platform():
         if d['buildapp'] in ('browser', 'mulet'):
             p = d['os']
             if p == 'mac':
                 p = 'macosx64'
             elif d['bits'] == 64:
                 p = '{}64'.format(p)