--- a/misc.py
+++ b/misc.py
@@ -2990,17 +2990,17 @@ def generateSpiderMonkeyObjects(project,
                 if a in pf:
                     factory_kwargs[a] = pf[a]
             factory_kwargs['env'] = env
 
             extra_args = ['-r', WithProperties("%(revision)s")]
             extra_args += ['--platform', platform]  # distinguish win64
             extra_args += mirrorAndBundleArgs(bconfig)
             extra_args += [variant]
-            for server in config.get('tooltool_url_list', []):
+            for server in bconfig.get('tooltool_url_list', []):
                 extra_args += ['--ttserver', server]
 
             f = ScriptFactory(
                 config['scripts_repo'],
                 'scripts/spidermonkey_builds/spidermonkey.sh',
                 interpreter=interpreter,
                 log_eval_func=rc_eval_func({1: WARNINGS}),
                 extra_args=tuple(extra_args),