diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c1891d6..dfa43418 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,12 @@ will consitute of a breaking change warranting a new major release:
 
 # [unreleased]
 
+## Added
+
+- Failure of Safe Mode Ctrl will now trigger an event. As this can only be caused by sensors not
+  being in the correct mode, the assemblies should take care that this will never happen and no
+  additional FDIR is needed.
+
 # [v1.37.2] 2023-03-14
 
 - Changed `PoolManager` bugfix implementation in the FSFW.