diff --git a/manifests/params.pp b/manifests/params.pp
index 3e3b4e4..b071910 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -5,6 +5,8 @@
 class mistral::params {
   include openstacklib::defaults
 
+  $pyver3 = $openstacklib::defaults::pyver3
+
   $client_package      = 'python3-mistralclient'
   $db_sync_command     = 'mistral-db-manage upgrade head'
   $db_populate_command = 'mistral-db-manage populate'
@@ -25,7 +27,7 @@ class mistral::params {
       $notifier_package_name      = 'openstack-mistral-notifier'
       $notifier_service_name      = 'openstack-mistral-notifier'
       $mistral_wsgi_script_path   = '/var/www/cgi-bin/mistral'
-      $mistral_wsgi_script_source = '/usr/bin/mistral-wsgi-api'
+      $mistral_wsgi_script_source = "/usr/lib/python${pyver3}/site-packages/mistral/api/wsgi.py"
     }
     'Debian': {
       $common_package_name        = 'mistral-common'
diff --git a/spec/classes/mistral_wsgi_apache_spec.rb b/spec/classes/mistral_wsgi_apache_spec.rb
index 5772172..4853df7 100644
--- a/spec/classes/mistral_wsgi_apache_spec.rb
+++ b/spec/classes/mistral_wsgi_apache_spec.rb
@@ -163,7 +163,7 @@ describe 'mistral::wsgi::apache' do
         when 'RedHat'
           {
             :wsgi_script_path   => '/var/www/cgi-bin/mistral',
-            :wsgi_script_source => '/usr/bin/mistral-wsgi-api'
+            :wsgi_script_source => '/usr/lib/python3.9/site-packages/mistral/api/wsgi.py',
           }
 
         end