diff --git a/manifests/auth_file.pp b/manifests/auth_file.pp
index c3f9e86..14dfd5c 100644
--- a/manifests/auth_file.pp
+++ b/manifests/auth_file.pp
@@ -111,7 +111,7 @@
 #
 # [*identity_api_version*]
 #   (optional) Identity API version to use.
-#   Defaults to undef.
+#   Defaults to '3'.
 #
 # [*object_api_version*]
 #   (optional) Object API version to use.
@@ -144,7 +144,7 @@ class openstack_extras::auth_file(
   $network_api_version      = undef,
   $image_api_version        = undef,
   $volume_api_version       = undef,
-  $identity_api_version     = undef,
+  $identity_api_version     = '3',
   $object_api_version       = undef,
 
 ) {
diff --git a/spec/classes/openstack_extras_auth_file_spec.rb b/spec/classes/openstack_extras_auth_file_spec.rb
index 3c0c074..8a8d96f 100644
--- a/spec/classes/openstack_extras_auth_file_spec.rb
+++ b/spec/classes/openstack_extras_auth_file_spec.rb
@@ -26,6 +26,7 @@ describe 'openstack_extras::auth_file' do
         'export KEYSTONE_ENDPOINT_TYPE=\'publicURL\'',
         'export NOVA_ENDPOINT_TYPE=\'publicURL\'',
         'export NEUTRON_ENDPOINT_TYPE=\'publicURL\'',
+        'export OS_IDENTITY_API_VERSION=\'3\'',
       ])
     end
   end
@@ -57,7 +58,7 @@ describe 'openstack_extras::auth_file' do
         :network_api_version      => '2.0',
         :image_api_version        => '2',
         :volume_api_version       => '2',
-        :identity_api_version     => '3',
+        :identity_api_version     => '3.1',
         :object_api_version       => '1',
       }
     end
@@ -87,7 +88,7 @@ describe 'openstack_extras::auth_file' do
         'export OS_NETWORK_API_VERSION=\'2.0\'',
         'export OS_IMAGE_API_VERSION=\'2\'',
         'export OS_VOLUME_API_VERSION=\'2\'',
-        'export OS_IDENTITY_API_VERSION=\'3\'',
+        'export OS_IDENTITY_API_VERSION=\'3.1\'',
         'export OS_OBJECT_API_VERSION=\'1\'',
       ])
     end