diff --git a/demo2.cpp b/demo2.cpp
index fa5f5e4..1326a3c 100644
--- a/demo2.cpp
+++ b/demo2.cpp
@@ -40,6 +40,9 @@
 #define FLOOR_TEXTURE_SCALE 2
   /* ^ Scales the floor texture if RCL_COMPUTE_FLOOR_TEXCOORDS is on. */
 
+//#define RCL_ACCURATE_WALL_TEXTURING 1
+  /* ^ This turns on extra accurate wall texturing, but is noticable slower. */
+
 //#define HEAD_BOB
   /* ^ Turns on head bobbing. */