diff --git a/extensions/film/schema.json b/extensions/film/schema.json
index 938857f8..94ef964a 100644
--- a/extensions/film/schema.json
+++ b/extensions/film/schema.json
@@ -17,6 +17,7 @@
             "properties": {
               "allOf": [
                 {
+                  "type": "object",
                   "required": ["film:id", "film:negative_sequence"]
                 },
                 {