diff --git a/fhem/CHANGED b/fhem/CHANGED
index c657b0991..15e68160d 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,6 +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.
 - SVN
+  - change:  09_CUL_FHTTK.pm: clean up code to avoid "Use of uninitialized 
+             value in concatenation.."
   - change:  09_CUL_FHTTK.pm: extend module list to FHT80TF and FHT80TF-2
              and update of documentation (matscher)
   - feature: disabledForIntervals attribute added for at/notify/watchdog