diff --git a/maintenance.md b/maintenance.md
index dc69e5f..90725c5 100644
--- a/maintenance.md
+++ b/maintenance.md
@@ -22,3 +22,4 @@ Newest entries at the bottom.
 - 2026-09-15: Airlock seals checked.
 - 2026-09-15: Water recycling filters replaced.
 - 2026-09-16: Coffee machine descaled.
+- 2026-09-16: Antenna realigned.