diff --git a/main.c b/main.c
index 4c0602b..e2b46fe 100644
--- a/main.c
+++ b/main.c
@@ -33,6 +33,11 @@ typedef struct {
 typedef bool (*coord_pred_t)(vec2_t c, vec2_t im);
 typedef bool (*visit_fn_t)(vec2_t c, vec2_t im);
 
+typedef struct {
+	bool is_path : 1;
+	bool visited : 1;
+} cell_t;
+
 static const struct timespec pause = { .tv_nsec = 5000000 };
 
 static const vec2_t steps[] = {
@@ -45,7 +50,7 @@ static const vec2_t steps[] = {
 static Display *dpy;
 static Window window;
 static GC ctx;
-static bool maze[GRID_SIZE][GRID_SIZE];
+static cell_t maze[GRID_SIZE][GRID_SIZE];
 
 static void draw_walls(void)
 {
@@ -75,7 +80,7 @@ static void draw_maze(void)
 
 	for (int x = 0; x < GRID_SIZE; ++x) {
 		for (int y = 0; y < GRID_SIZE; ++y) {
-			if (maze[x][y])
+			if (maze[x][y].is_path)
 				continue;
 			const int left = margin_px + PX(x);
 			const int top = margin_px + PX(y);
@@ -122,13 +127,13 @@ random_walk(coord_pred_t should_visit, visit_fn_t visit_fn, vec2_t start)
 static bool is_wall(vec2_t c, vec2_t im)
 {
 	(void)im;
-	return !maze[c.x][c.y];
+	return !maze[c.x][c.y].is_path;
 }
 
 static bool generation_visit(vec2_t c, vec2_t im)
 {
-	maze[c.x][c.y] = true;
-	maze[im.x][im.y] = true;
+	maze[c.x][c.y].is_path = true;
+	maze[im.x][im.y].is_path = true;
 	return false;
 }
 
@@ -166,7 +171,7 @@ int main(void)
 	// Generate
 	memset(&maze, 0, sizeof(maze));
 	const vec2_t gen_start = { GOAL, GOAL };
-	maze[GOAL][GOAL] = true;
+	maze[GOAL][GOAL].is_path = true;
 	random_walk(is_wall, generation_visit, gen_start);
 
 	// Wait for window exit