diff --git a/Using-BlenderCAM-with-OpenCAMLib.md b/Using-BlenderCAM-with-OpenCAMLib.md
index 1ebe3b9..ae67b57 100644
--- a/Using-BlenderCAM-with-OpenCAMLib.md
+++ b/Using-BlenderCAM-with-OpenCAMLib.md
@@ -6,7 +6,10 @@ Building from source on Debian GNU/Linux (probably also Ubuntu):
 
 Install dependecies:
 
-    sudo aptitude install libboost-dev libomp-dev libpython-dev python-dev python-vtk6 g++ cmake blender python3-numpy python3-shapely git libboost-python-dev
+    sudo aptitude install libboost-dev libomp-dev libpython-dev python-dev python-vtk6 g++ cmake blender python3-numpy python3-shapely git libboost-python-dev  
+
+Install optional dependencies:
+apt install amd64-microcode intel-microcode cmake-gui  
 
 For Debian Jessie you have to replace libomp-dev with libiomp-dev (libomp-dev is not in stable yet)