diff --git a/Source/lighting.cpp b/Source/lighting.cpp
index 17eaefc67..3e0258737 100644
--- a/Source/lighting.cpp
+++ b/Source/lighting.cpp
@@ -648,9 +648,10 @@ void DoUnLight(int nXPos, int nYPos, int nRadius)
 
 	for (y = min_y; y < max_y; y++) {
 		for (x = min_x; x < max_x; x++) {
-			if (x >= 0 && x < MAXDUNX && y >= 0 && y < MAXDUNY) {
+#ifdef HELLFIRE
+			if (x >= 0 && x < MAXDUNX && y >= 0 && y < MAXDUNY)
+#endif
 				dLight[x][y] = dPreLight[x][y];
-			}
 		}
 	}
 }