diff --git a/src/pretix/api/serializers/order.py b/src/pretix/api/serializers/order.py
index 577f7870ae..55c951f48d 100644
--- a/src/pretix/api/serializers/order.py
+++ b/src/pretix/api/serializers/order.py
@@ -189,6 +189,11 @@ class PdfDataSerializer(serializers.Field):
             for k, v in ev._cached_meta_data.items():
                 res['meta:' + k] = v
 
+            if not hasattr(instance.item, '_cached_meta_data'):
+                instance.item._cached_meta_data = instance.item.meta_data
+            for k, v in instance.item._cached_meta_data.items():
+                res['itemmeta:' + k] = v
+
         return res