diff --git a/src/p_buildmap.cpp b/src/p_buildmap.cpp
index 7e2f0b472..2ee2ae83a 100644
--- a/src/p_buildmap.cpp
+++ b/src/p_buildmap.cpp
@@ -20,8 +20,8 @@
 
 // MACROS ------------------------------------------------------------------
 
-//#define SHADE2LIGHT(s) (clamp (160-2*(s), 0, 255))
-#define SHADE2LIGHT(s) (clamp (255-2*s, 0, 255))
+//#define SHADE2LIGHT(s) (160-2*(s))
+#define SHADE2LIGHT(s) (255-2*s)
 
 // TYPES -------------------------------------------------------------------