diff --git a/lib/ansible/module_utils/openstack.py b/lib/ansible/module_utils/openstack.py
index 1b202860aa..4d86f04aee 100644
--- a/lib/ansible/module_utils/openstack.py
+++ b/lib/ansible/module_utils/openstack.py
@@ -78,7 +78,7 @@ def openstack_full_argument_spec(**kwargs):
         auth=dict(default=None, type='dict', no_log=True),
         region_name=dict(default=None),
         availability_zone=dict(default=None),
-        verify=dict(default=None, aliases=['validate_certs']),
+        verify=dict(default=None, type='bool', aliases=['validate_certs']),
         cacert=dict(default=None),
         cert=dict(default=None),
         key=dict(default=None, no_log=True),