--- a/mozilla/b2g_config.py
+++ b/mozilla/b2g_config.py
@@ -574,17 +574,17 @@ PLATFORM_VARS = {
         'product_name': 'firefox',
         'multi_locale': False,
         'unittest_platform': 'macosx64-mulet-opt',
         'app_name': 'browser',
         'brand_name': 'Minefield',
         'base_name': 'OS X Mulet %(branch)s',
         'mozconfig': 'in_tree',
         'src_mozconfig': 'b2g/dev/config/mozconfigs/macosx64/mulet',
-        'packageTests': True,
+        'packageTests': False,
         'profiled_build': False,
         'builds_before_reboot': b2g_localconfig.BUILDS_BEFORE_REBOOT,
         'build_space': 12,
         'upload_symbols': False,
         'download_symbols': False,
         'slaves': SLAVES['macosx64-lion'],
         'platform_objdir': OBJDIR,
         'stage_product': 'b2g',