diff --git a/bin/nova-api b/bin/nova-api
index 11176a021..eb59d0191 100755
--- a/bin/nova-api
+++ b/bin/nova-api
@@ -59,12 +59,12 @@ def run_app(paste_config_file):
         LOG.debug(_("App Config: %(api)s\n%(config)r") % locals())
         wsgi.paste_config_to_flags(config, {
             "verbose": FLAGS.verbose,
-            "%s_host" % api: config.get('host', '0.0.0.0'),
+            "%s_host" % api: getattr(FLAGS, "%s_host" % api),
             "%s_port" % api: getattr(FLAGS, "%s_port" % api)})
         LOG.info(_("Running %s API"), api)
         app = wsgi.load_paste_app(paste_config_file, api)
         apps.append((app, getattr(FLAGS, "%s_port" % api),
-                     getattr(FLAGS, "%s_host" % api)))
+                     config.get('listen', '0.0.0.0')))
     if len(apps) == 0:
         LOG.error(_("No known API applications configured in %s."),
                   paste_config_file)
diff --git a/bin/nova-combined b/bin/nova-combined
index 913c866bf..889600eb7 100755
--- a/bin/nova-combined
+++ b/bin/nova-combined
@@ -67,11 +67,11 @@ if __name__ == '__main__':
             continue
         wsgi.paste_config_to_flags(config, {
             "verbose": FLAGS.verbose,
-            "%s_host" % api: config.get('host', '0.0.0.0'),
+            "%s_host" % api: getattr(FLAGS, "%s_host" % api),
             "%s_port" % api: getattr(FLAGS, "%s_port" % api)})
         app = wsgi.load_paste_app(paste_config_file, api)
         apps.append((app, getattr(FLAGS, "%s_port" % api),
-                     getattr(FLAGS, "%s_host" % api)))
+                     config.get('listen', '0.0.0.0')))
     if len(apps) > 0:
         logging.basicConfig()
         server = wsgi.Server()