diff --git a/nova/flags.py b/nova/flags.py
index 91dcab9f..41e0a45f 100644
--- a/nova/flags.py
+++ b/nova/flags.py
@@ -137,8 +137,13 @@ global_opts = [
                help='default glance port'),
     cfg.ListOpt('glance_api_servers',
                 default=['$glance_host:$glance_port'],
-                help='A list of the glance api servers available to nova '
+                help='A list of the glance api servers available to nova. '
+                     'Prefix with https:// for ssl-based glance api servers. '
                      '([hostname|ip]:port)'),
+    cfg.BoolOpt('glance_api_insecure',
+                default=False,
+                help='Allow to perform insecure SSL (https) requests to '
+                     'glance'),
     cfg.IntOpt('glance_num_retries',
                default=0,
                help='Number retries when downloading an image from glance'),