diff --git a/ckanext/scheming/ckan_dataset.yaml b/ckanext/scheming/ckan_dataset.yaml
index 7d0fd919..f88562d5 100644
--- a/ckanext/scheming/ckan_dataset.yaml
+++ b/ckanext/scheming/ckan_dataset.yaml
@@ -93,4 +93,5 @@ resource_fields:
 - field_name: size
   label: File Size
   validators: ignore_missing int_validator
+  form_snippet: number.html
   display_snippet: file_size.html