diff --git a/pbs-api-types/src/jobs.rs b/pbs-api-types/src/jobs.rs
index f3e64ee4..7b5a1f3d 100644
--- a/pbs-api-types/src/jobs.rs
+++ b/pbs-api-types/src/jobs.rs
@@ -686,7 +686,6 @@ impl PruneJobOptions {
         },
         schedule: {
             schema: PRUNE_SCHEDULE_SCHEMA,
-            optional: true,
         },
         comment: {
             optional: true,