diff --git a/fixtures/program/host.json b/fixtures/program/host.json
index bd70ac3765af7bfecaeb223aeebead8cf3b65134..18650306cc0991ed875c47f82a7de5f8ae617ab0 100644
--- a/fixtures/program/host.json
+++ b/fixtures/program/host.json
@@ -6,7 +6,7 @@
       "name": "Musikredaktion",
       "is_active": true,
       "email": "",
-      "biography": null,
+      "biography": "",
       "image": null,
       "created_at": "2000-06-01 00:00Z",
       "created_by": "loaddata"