diff --git a/maintenance.md b/maintenance.md
index 38dd4b5..ddb730f 100644
--- a/maintenance.md
+++ b/maintenance.md
@@ -25,3 +25,4 @@ Newest entries at the bottom.
 - 2026-09-16: Antenna realigned.
 - 2026-09-17: Cabin pressure sensors tested.
 - 2026-09-18: Radiation shielding inspected.
+- 2026-09-18: Debugging duck accounted for.