diff --git a/src/draw.c b/src/draw.c
index 962b46c..60c53db 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -125,7 +125,7 @@ void erase_tile(int x, int y, char level[])
 {
 	x = (int)(x/16);
 	y = (int)(y/16);
-	level[x + y * 28] = '.';
+	level[x + y * LEVEL_WIDTH] = '.';
 	x *= 16;
 	y *= 16;
 	drect(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y,