diff --git a/manifests/auth_file.pp b/manifests/auth_file.pp
index a8e1343..deb0c21 100644
--- a/manifests/auth_file.pp
+++ b/manifests/auth_file.pp
@@ -115,14 +115,6 @@
 #
 # DEPRECATED PARAMETERS
 #
-# [*project_domain*]
-#   (Optional) Project domain in v3 api.
-#   Defaults to 'Default'.
-#
-# [*user_domain*]
-#   (Optional) User domain in v3 api.
-#   Defaults to 'Default'.
-#
 # [*tenant_name*]
 #   (Optional) Tenant for this account as defined in keystone
 #   Defaults to undef.
@@ -155,27 +147,9 @@ class openstack_extras::auth_file (
   $identity_api_version   = '3',
   $object_api_version     = undef,
   # DEPRECATED PARAMETERS
-  $project_domain         = undef,
-  $user_domain            = undef,
   $tenant_name            = undef,
 ) {
 
-  if $project_domain != undef {
-    warning('project_domain is deprecated and will be removed in a future release. \
-Use project_domain_name instead')
-    $project_domain_name_real = $project_domain
-  } else {
-    $project_domain_name_real = $project_domain_name
-  }
-
-  if $user_domain != undef {
-    warning('user_domain is deprecated and will be removed in a future release. \
-Use user_domain_name instead')
-    $user_domain_name_real = $user_domain
-  } else {
-    $user_domain_name_real = $user_domain_name
-  }
-
   if $tenant_name != undef {
     warning('tenant_name is deprecated and will be removed in a future release. \
 Use project_name instead')
diff --git a/releasenotes/notes/remove-domain_name-2a9dee69a7334eab.yaml b/releasenotes/notes/remove-domain_name-2a9dee69a7334eab.yaml
new file mode 100644
index 0000000..df99cf7
--- /dev/null
+++ b/releasenotes/notes/remove-domain_name-2a9dee69a7334eab.yaml
@@ -0,0 +1,8 @@
+---
+upgrade:
+  - |
+    The following parameters of the ``openstack_extras::auth_file`` class have
+    been removed.
+
+    - ``project_domain``
+    - ``user_domain``
diff --git a/templates/openrc.erb b/templates/openrc.erb
index 5288079..6131510 100644
--- a/templates/openrc.erb
+++ b/templates/openrc.erb
@@ -15,11 +15,11 @@ export OS_PASSWORD='<%= @password.gsub(/'/){ %q(\') } %>'
 export OS_AUTH_URL='<%= @auth_url %>'
 export OS_AUTH_STRATEGY='<%= @auth_strategy %>'
 export OS_REGION_NAME='<%= @region_name %>'
-<% if @project_domain_name_real -%>
-export OS_PROJECT_DOMAIN_NAME='<%= @project_domain_name_real %>'
+<% if @project_domain_name -%>
+export OS_PROJECT_DOMAIN_NAME='<%= @project_domain_name %>'
 <% end -%>
-<% if @user_domain_name_real -%>
-export OS_USER_DOMAIN_NAME='<%= @user_domain_name_real %>'
+<% if @user_domain_name -%>
+export OS_USER_DOMAIN_NAME='<%= @user_domain_name %>'
 <% end -%>
 <% if @auth_type -%>
 export OS_AUTH_TYPE='<%= @auth_type %>'