diff --git a/source/code/main.cpp b/source/code/main.cpp
index 6db9ffd..be7136b 100644
--- a/source/code/main.cpp
+++ b/source/code/main.cpp
@@ -627,8 +627,9 @@ private:
 	void PaintBricks() const {
 		for (int i=0; ((i<13)&&(i<30)); i++) {
 			for (int j=0; j<6; j++) {
-				if ((board[j][i]%10 != -1) && (board[j][i]%10 < 7) && ((board[j][i]/1000000)%10==0)) {
-					DrawImgBoardBounded(bricks[board[j][i]%10],  j*bsize, bsize*12-i*bsize-pixels);
+				int basicBrick = board[j][i]%10;
+				if ((basicBrick > -1) && (basicBrick < 7) && ((board[j][i]/1000000)%10==0)) {
+					DrawImgBoardBounded(bricks[basicBrick],  j*bsize, bsize*12-i*bsize-pixels);
 					if ((board[j][i]/BLOCKWAIT)%10==1) {
 						DrawImgBoard(bomb,  j*bsize, bsize*12-i*bsize-pixels);
 					}