diff --git a/tailbone/views/batch/pos.py b/tailbone/views/batch/pos.py
index 09df6ddb..72d2e7ee 100644
--- a/tailbone/views/batch/pos.py
+++ b/tailbone/views/batch/pos.py
@@ -251,6 +251,8 @@ class POSBatchView(BatchMasterView):
 
             config.add_tailbone_permission_group('pos', "POS", overwrite=False)
 
+            config.add_tailbone_permission('pos', 'pos.test_error',
+                                           "Force error to test error handling")
             config.add_tailbone_permission('pos', 'pos.ring_sales',
                                            "Make transactions (ring up sales)")
             # config.add_tailbone_permission('pos', 'pos.resume',