diff --git a/docs/modding/util/vrad.md b/docs/modding/util/vrad.md
index fdadadbe..4590a44f 100644
--- a/docs/modding/util/vrad.md
+++ b/docs/modding/util/vrad.md
@@ -114,8 +114,11 @@ Other options:
                           light on terrain. The compile will take longer, but
                           it will gather light across a wider area.
   -StaticPropLighting   : generate baked static prop vertex lighting
-  -StaticPropLightingFinal   : this option is obsolete. it's function is merged with -final.
-  -StaticPropPolys   : Calculate lighting on static props using the visual mesh instead of the collision mesh.
+  -StaticPropLightingFinal   : This option is obsolete. it's function is merged with -final.
+  -StaticPropLightingOld   : This option uses an older algorithm for static prop lighting  
+                             in which props will be lit much brighter than they should
+                             Sometimes this is preferred to match the style of older Source games, like Portal 2 which used this algorithm
+  -StaticPropPolys   : Perform shadow tests of static props at polygon precision
   -OnlyStaticProps   : Only perform direct static prop lighting (vrad debug option)
   -StaticPropNormals : when lighting static props, just show their normal vector
   -StaticPropBounce  : Enable static props to bounce light. Experimental option, doesn't work with VMPI right now.