diff --git a/app/controllers/node_controller.ts b/app/controllers/node_controller.ts
index 852a72d..cd3dddd 100644
--- a/app/controllers/node_controller.ts
+++ b/app/controllers/node_controller.ts
@@ -6,8 +6,12 @@ import BatchStore, { StaleBatch } from '#services/batch_store'
 import Spool from '#services/spool'
 import { KEEPALIVE, encodeFrame, fromWire, type WireBatch } from '#lib/edge/index'
 
-/** How long the stream waits for a chunk the prefetcher hasn't spooled yet. */
-const CHUNK_WAIT_MS = 15 * 60 * 1000
+/**
+ * How long the stream waits for a chunk the prefetcher hasn't spooled yet. Long: a chunk that keeps
+ * coming in isn't given up (only a stalled one is), and some groups' chunks take 20+ minutes
+ * (a.b.0day.stuffz, 17 MB in 22 min; LOG.md 2026-10-10 (3)).
+ */
+const CHUNK_WAIT_MS = 60 * 60 * 1000
 /** While waiting, an empty frame this often: an HTTP client gives up on a quiet body (Node's after 5 minutes). */
 const KEEPALIVE_MS = 20_000