diff --git a/fhem/CHANGED b/fhem/CHANGED
index 98ca4ec96..1b252c513 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,8 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+ - bugfix:  73_ElectricityCalculator : Summer/Winter-Time Crash fixed.
+ - bugfix:  73_GasCalculator         : Summer/Winter-Time Crash fixed.
+ - bugfix:  73_WaterCalculator       : Summer/Winter-Time Crash fixed.
  - bugfix:  10_KNX: a few fixes and optimisation
  - bugfix:  98_weekprofile:create reference profile
                            from an other referenced profile