diff --git a/fhem/FHEM/98_PID20.pm b/fhem/FHEM/98_PID20.pm
index 2e40d7c0f..72a5b6bde 100644
--- a/fhem/FHEM/98_PID20.pm
+++ b/fhem/FHEM/98_PID20.pm
@@ -86,6 +86,12 @@
 #
 #               id-Tags added to commandref            (for define/set/get/attributes)
 #
+# 2023-08-08    patches
+#
+#               invalid name of sensor / reading / actor will no longer
+#               prevent the definition, but will write log entries with errors.
+#
+#
 ####################################################################################################
 =cut