diff --git a/dev/ofunctions.sh b/dev/ofunctions.sh
index 57eae91..e00fbcb 100644
--- a/dev/ofunctions.sh
+++ b/dev/ofunctions.sh
@@ -3,7 +3,7 @@
 #### OFUNCTIONS MINI SUBSET ####
 
 _OFUNCTIONS_VERSION=2.1-dev
-_OFUNCTIONS_BUILD=2016121205
+_OFUNCTIONS_BUILD=2016121301
 #### _OFUNCTIONS_BOOTSTRAP SUBSET ####
 _OFUNCTIONS_BOOTSTRAP=true
 #### _OFUNCTIONS_BOOTSTRAP SUBSET END ####
@@ -1696,6 +1696,9 @@ function InitRemoteOSDependingSettings {
 	if [ "$KEEP_DIRLINKS" == "yes" ]; then
 		RSYNC_ARGS=$RSYNC_ARGS" -K"
 	fi
+	if [ "$RSYNC_OPTIONAL_ARGS" != "" ]; then
+		RSYNC_ARGS=$RSYNC_ARGS" "$RSYNC_OPTIONAL_ARGS
+	fi
 	if [ "$PRESERVE_HARDLINKS" == "yes" ]; then
 		RSYNC_ARGS=$RSYNC_ARGS" -H"
 	fi
diff --git a/sync.conf.example b/sync.conf.example
index 8ed275c..573d3e4 100644
--- a/sync.conf.example
+++ b/sync.conf.example
@@ -2,7 +2,7 @@
 
 ###### osync - Rsync based two way sync engine with fault tolerance
 ###### (C) 2013-2016 by Orsiris de Jong (www.netpower.fr)
-###### osync v1.1x / v1.2x config file rev 2016111201
+###### osync v1.1x / v1.2x config file rev 2016121301
 
 ## ---------- GENERAL OPTIONS
 
@@ -79,6 +79,10 @@ REMOTE_3RD_PARTY_HOSTS="www.kernel.org www.google.com"
 
 ## ---------- MISC OPTIONS
 
+## 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
+RSYNC_OPTIONAL_ARGS=""
+
 ## Preserve basic linux permissions
 PRESERVE_PERMISSIONS=yes
 PRESERVE_OWNER=yes