diff --git a/host_backup.conf.example b/host_backup.conf.example
index d8af34b..b207d71 100644
--- a/host_backup.conf.example
+++ b/host_backup.conf.example
@@ -152,6 +152,7 @@ PATH_SEPARATOR_CHAR=";"
 
 ## Optional arguments passed to rsync executable. The following are already managed by the program and shoul never be passed here
 ## -rltD -n -P -o -g --executability -A -X -zz -L -K -H -8 -u -i --stats --checksum --bwlimit --partial --partial-dir --exclude --exclude-from --include--from --no-whole-file --whole-file --list-only
+## When dealing with different filesystems for sync, or using SMB mountpoints, try adding --modify-window=2 --omit-dir-times as optional arguments
 RSYNC_OPTIONAL_ARGS=""
 
 ## Preserve basic linux permissions