diff --git a/Shaders/urban.vert b/Shaders/urban.vert
index 284ce5e18..3e23e8ba5 100644
--- a/Shaders/urban.vert
+++ b/Shaders/urban.vert
@@ -7,10 +7,10 @@ varying vec4  ecPosition;
 varying vec3  VNormal;
 varying vec3  Normal;
 varying vec3  VTangent;
-//varying vec3  VBinormal;
+varying vec3  VBinormal;
 varying vec4  constantColor;
 
-attribute vec3 tangent;//, binormal;
+attribute vec3 tangent, binormal;
 
 ////fog "include"////////
 // uniform int fogType;