diff --git a/code/nel/src/3d/driver/opengl3/driver_opengl_vertex_program.cpp b/code/nel/src/3d/driver/opengl3/driver_opengl_vertex_program.cpp
index a2f01ac2e..7e77112eb 100644
--- a/code/nel/src/3d/driver/opengl3/driver_opengl_vertex_program.cpp
+++ b/code/nel/src/3d/driver/opengl3/driver_opengl_vertex_program.cpp
@@ -298,7 +298,7 @@ namespace
 		ss << std::endl;
 		
 		// if (!useTextures) {
-		ss << "uniform vec4 ambientColor;" << std::endl;
+		ss << "uniform vec4 ambientColor;" << std::endl; // FIXME: ambient color of all lights is precalculated and added with self illumination!
 		ss << "uniform vec4 diffuseColor;" << std::endl;
 		ss << "uniform vec4 specularColor;" << std::endl; // }