diff --git a/src/pretix/plugins/ticketoutputpdf/models.py b/src/pretix/plugins/ticketoutputpdf/models.py
index 4f6eb4d1ca..1f074eda3d 100644
--- a/src/pretix/plugins/ticketoutputpdf/models.py
+++ b/src/pretix/plugins/ticketoutputpdf/models.py
@@ -202,7 +202,8 @@ DEFAULT_TICKET_LAYOUT = '''[{
     "type":"barcodearea",
     "left":"130.40",
     "bottom":"204.50",
-    "size":"64.00"
+    "size":"64.00",
+    "content":"secret"
 },
 {
     "type":"poweredby",