diff --git a/spec/engine/miq_ae_state_machine_retry_spec.rb b/spec/engine/miq_ae_state_machine_retry_spec.rb
index d5f1981d..89c78e24 100644
--- a/spec/engine/miq_ae_state_machine_retry_spec.rb
+++ b/spec/engine/miq_ae_state_machine_retry_spec.rb
@@ -183,6 +183,7 @@ def create_restart_model(script1, script2, script3)
   end
 
   it "check persistent hash" do
+    ActiveRecord::Base.yaml_column_permitted_classes << "MiqAeEngine::StateVarHash"
     setup_model(method_script_state_var)
     expected = MiqAeEngine::StateVarHash.new('three' => 3, 'one' => 1, 'two' => 2, 'gravy' => 'train')
     send_ae_request_via_queue(@automate_args)