diff --git a/maintenance.md b/maintenance.md
index a3f696e..368da20 100644
--- a/maintenance.md
+++ b/maintenance.md
@@ -46,3 +46,4 @@ Newest entries at the bottom.
 - 2026-10-05: Fire extinguishers checked.
 - 2026-10-05: Hull inspection, no leaks.
 - 2026-10-06: Water recycling filters replaced.
+- 2026-10-06: Debugging duck accounted for.