1 files changed, 3 insertions, 0 deletions
diff --git a/ext/kv/lib.rs b/ext/kv/lib.rs
index 456a1ebf7..943aae460 100644
--- a/ext/kv/lib.rs
+++ b/ext/kv/lib.rs
@@ -802,6 +802,9 @@ where
 
   for enqueue in &enqueues {
     total_payload_size += check_enqueue_payload_size(&enqueue.payload)?;
+    if let Some(schedule) = enqueue.backoff_schedule.as_ref() {
+      total_payload_size += 4 * schedule.len();
+    }
   }
 
   if total_payload_size > MAX_TOTAL_MUTATION_SIZE_BYTES {