--- a/README.md	Wed Sep 12 11:36:50 2018 +0200
+++ b/README.md	Wed Sep 12 22:59:30 2018 +0200
@@ -23,6 +23,7 @@
 		sudo apt-get install build-essential bison flex autoconf
 		sudo apt-get install python-wxgtk3.0 pyro mercurial
 		sudo apt-get install python-nevow python-matplotlib python-lxml python-zeroconf python-cycler
+		sudo apt-get install python-autobahn python-u-msgpack
 
 * Prepare
 
@@ -45,11 +46,11 @@
 * Build CanFestival (optional)  
   Only needed for CANopen support. Please read CanFestival manual to choose CAN interface other than 'virtual'.
 
-        cd ~/Beremiz
-        hg clone http://dev.automforge.net/CanFestival-3
-        cd ~/Beremiz/CanFestival-3
-        ./configure --can=virtual
-        make
+		cd ~/Beremiz
+		hg clone http://dev.automforge.net/CanFestival-3
+		cd ~/Beremiz/CanFestival-3
+		./configure --can=virtual
+		make
 
 * Build Modbus library (optional)
   Only needed for Modbus support.
@@ -59,6 +60,14 @@
 		cd ~/Beremiz/Modbus
 		make
 
+* Build BACnet (optional)
+  Only needed for BACnet support.
+
+		cd ~/Beremiz
+		svn checkout https://svn.code.sf.net/p/bacnet/code/trunk/bacnet-stack/ BACnet
+		cd BACnet
+		make MAKE_DEFINE='-fPIC' all
+
 * Launch Beremiz IDE
 
 		cd ~/Beremiz/beremiz