diff --git a/Source/lighting.cpp b/Source/lighting.cpp
index ef1035d77..073e2a47d 100644
--- a/Source/lighting.cpp
+++ b/Source/lighting.cpp
@@ -9,7 +9,7 @@ BOOL dovision;
 int numvision;
 char lightmax;
 BOOL dolighting;
-BYTE lightblock[8][8][16][16];
+BYTE lightblock[64][16][16];
 int visionid;
 BYTE *pLightTbl;
 BOOL lightflag;
@@ -556,7 +556,7 @@ void DoLighting(int nXPos, int nYPos, int nRadius, int Lnum)
 	mult = xoff + 8 * yoff;
 	for (y = 0; y < min_y; y++) {
 		for (x = 1; x < max_x; x++) {
-			radius_block = lightblock[0][mult][y][x];
+			radius_block = lightblock[mult][y][x];
 			if (radius_block < 128) {
 				temp_x = nXPos + x;
 				temp_y = nYPos + y;
@@ -573,7 +573,7 @@ void DoLighting(int nXPos, int nYPos, int nRadius, int Lnum)
 	mult = xoff + 8 * yoff;
 	for (y = 0; y < max_y; y++) {
 		for (x = 1; x < max_x; x++) {
-			radius_block = lightblock[0][mult][y + block_y][x + block_x];
+			radius_block = lightblock[mult][y + block_y][x + block_x];
 			if (radius_block < 128) {
 				temp_x = nXPos + y;
 				temp_y = nYPos - x;
@@ -590,7 +590,7 @@ void DoLighting(int nXPos, int nYPos, int nRadius, int Lnum)
 	mult = xoff + 8 * yoff;
 	for (y = 0; y < max_y; y++) {
 		for (x = 1; x < min_x; x++) {
-			radius_block = lightblock[0][mult][y + block_y][x + block_x];
+			radius_block = lightblock[mult][y + block_y][x + block_x];
 			if (radius_block < 128) {
 				temp_x = nXPos - x;
 				temp_y = nYPos - y;
@@ -607,7 +607,7 @@ void DoLighting(int nXPos, int nYPos, int nRadius, int Lnum)
 	mult = xoff + 8 * yoff;
 	for (y = 0; y < min_y; y++) {
 		for (x = 1; x < min_x; x++) {
-			radius_block = lightblock[0][mult][y + block_y][x + block_x];
+			radius_block = lightblock[mult][y + block_y][x + block_x];
 			if (radius_block < 128) {
 				temp_x = nXPos - y;
 				temp_y = nYPos + x;
@@ -958,7 +958,7 @@ void MakeLightTable()
 					} else {
 						fa = 0.5;
 					}
-					lightblock[i][j][k][l] = fs + fa;
+					lightblock[i * 8 + j][k][l] = fs + fa;
 				}
 			}
 		}
diff --git a/Source/lighting.h b/Source/lighting.h
index b755bd6d5..5b5934232 100644
--- a/Source/lighting.h
+++ b/Source/lighting.h
@@ -11,7 +11,7 @@ extern BOOL dovision;
 extern int numvision;
 extern char lightmax;
 extern BOOL dolighting;
-extern BYTE lightblock[8][8][16][16];
+extern BYTE lightblock[64][16][16];
 extern int visionid;
 extern BYTE *pLightTbl;
 extern BOOL lightflag;