diff --git a/fhem/FHEM/92_FileLog.pm b/fhem/FHEM/92_FileLog.pm
index 5633f3f79..2c643f4bb 100755
--- a/fhem/FHEM/92_FileLog.pm
+++ b/fhem/FHEM/92_FileLog.pm
@@ -1116,6 +1116,9 @@ FileLog_sampleDataFn($$$$$)
If this attribute is not set, but nrarchive and/or archivecmd are set,
then nrarchive old logfiles are kept along the current one while older
ones are moved to archivedir (or deleted if archivedir is not set).
+
+ Note: setting these attributes for the global instance will effect the
+ FHEM logfile only.