diff --git a/features.txt b/features.txt
index b28976c78..87684dfb0 100644
--- a/features.txt
+++ b/features.txt
@@ -37,7 +37,7 @@ Spotlights + shadow maps
 Point lights + shadow cubemaps
 Diffuse, specular lighting for all lights
 Soft shadows
-Rigid body physics simulation (HAVOK)
+Rigid body physics simulation (HAVOK) [NOT PUBLIC]
 Rigid body physics simulation (BULLET)
 Soft body physics simulation (BULLET)
 Sound (Xaudio2)
@@ -53,4 +53,4 @@ Skin shader (Subsurface scattering approximation)
 Stencil layering
 Deferred decals
 Color Grading
-Lua Scripting
\ No newline at end of file
+Lua Scripting