diff --git a/module/data/action/baseAction.mjs b/module/data/action/baseAction.mjs
index 2f5935da..7ea7331a 100644
--- a/module/data/action/baseAction.mjs
+++ b/module/data/action/baseAction.mjs
@@ -32,7 +32,8 @@ export default class DHBaseAction extends ActionMixin(foundry.abstract.DataModel
             actionType: new fields.StringField({
                 choices: CONFIG.DH.ITEM.actionTypes,
                 initial: 'action',
-                nullable: true
+                nullable: false,
+                required: true
             })
         };