diff --git a/addon/models/panda/workflow-action-definition.coffee b/addon/models/panda/workflow-action-definition.coffee
index a7655eb..2faa889 100644
--- a/addon/models/panda/workflow-action-definition.coffee
+++ b/addon/models/panda/workflow-action-definition.coffee
@@ -30,7 +30,7 @@ Model =
   workflow_action_offsets: DS.hasMany('panda/workflow-action-offset', inverse: 'workflow_action_definition')
   dependent_workflow_action_offsets: DS.hasMany('panda/workflow-action-offset', inverse: 'base_workflow_action_definition')
   #project_scenarios: DS.hasMany('panda/project-scenario', inverse: 'workflow_action_definitions')
-  project_scenarios: DS.hasMany('panda/project-scenario', inverse: null)
+  project_scenarios: DS.hasMany('panda/project-scenario')
   project_instance_actions: DS.hasMany('panda/project-instance-action', inverse: 'workflow_action_definition')
   confirms_workflow_action_definition: DS.belongsTo('panda/workflow-action-definition', inverse: 'confirmed_by_workflow_action_definition')
   confirmed_by_workflow_action_definition: DS.belongsTo('panda/workflow-action-definition', inverse: 'confirms_workflow_action_definition')