diff --git a/ressources/bad_maps/wrongmap_hole_map.cub b/ressources/bad_maps/wrongmap_hole_map.cub
new file mode 100644
index 0000000..06a79e0
--- /dev/null
+++ b/ressources/bad_maps/wrongmap_hole_map.cub
@@ -0,0 +1,22 @@
+NO      ./path_to_the_north_texture
+SO      ./path_to_the_south_texture
+WE      ./path_to_the_west_texture
+EA      ./path_to_the_east_texture
+
+F 220,100,0
+C 225,30,0
+
+        1111111111111111111111111
+        1000000000110000000000001
+        1011000001110000000000001
+        1001000000000000000000001
+111111111011000001110000000000001
+100 00000011000001110111110111111
+11110111111111011100000010001
+11110111111111011101010010001
+11000000110101011100000010001
+10000000000000001100000010001
+10000000000000001101010010001
+11000001110101011111011110N0111
+11110111 1110101 101111010001
+11111111 1111111 111111111111
diff --git a/src/main.c b/src/main.c
index 2bd7447..1bcd785 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,7 +6,7 @@
 /*   By: tchampio <tchampio@student.42lehavre.      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/05/06 13:16:11 by tchampio          #+#    #+#             */
-/*   Updated: 2025/06/22 00:17:39 by tchampio         ###   ########.fr       */
+/*   Updated: 2025/06/24 10:40:02 by tchampio         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -85,12 +85,12 @@ void	draw_map(t_mapdata *map, t_mlx_data *data)
 	int	j;
 
 	i = 0;
-	while (map->map[i])
+	while (map->mapflood[i])
 	{
 		j = 0;
-		while (map->map[i][j])
+		while (map->mapflood[i][j])
 		{
-			if (map->map[i][j] == '1')
+			if (map->mapflood[i][j] == '1')
 				draw_2d_wall(map->f_color, data, 10, 10 * j, 10 * i);
 			else if (ft_strchr("NSEW", map->map[i][j]))
 				draw_2d_wall(0x00FF0000, data, 10, 10 * j, 10 * i);
diff --git a/src/map/map_checker.c b/src/map/map_checker.c
index 8f7699e..adb2560 100644
--- a/src/map/map_checker.c
+++ b/src/map/map_checker.c
@@ -6,7 +6,7 @@
 /*   By: tchampio <tchampio@student.42lehavre.      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/06/06 17:54:42 by tchampio          #+#    #+#             */
-/*   Updated: 2025/06/21 19:40:13 by tchampio         ###   ########.fr       */
+/*   Updated: 2025/06/24 10:40:30 by tchampio         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -53,6 +53,20 @@ void	free_tab_length(char **tab, int length)
 	free(tab);
 }
 
+void	flood_fill(t_mapdata *map, int x, int y)
+{
+	if (map->mapflood[y][x] == '1')
+		return ;
+	if (map->mapflood[y][x] == ' ' || map->mapflood[y][x] == '\n')
+		map->isvalid = false;
+
+	map->mapflood[y][x] = '1';
+	flood_fill(map, x + 1, y);
+	flood_fill(map, x, y + 1);
+	flood_fill(map, x - 1, y);
+	flood_fill(map, x, y - 1);
+}
+
 bool	check_cubfile(char *file, t_mapdata *map)
 {
 	int	fd;
@@ -75,5 +89,8 @@ bool	check_cubfile(char *file, t_mapdata *map)
 	if (!check_bare_minimum(map))
 		return (close(fd), false);
 	map->isvalid = true;
+	flood_fill(map, map->startx, map->starty);
+	if (!map->isvalid)
+		return (close(fd), ft_strlcpy(map->error, "Map has holes!", 16), false);
 	return (true);
 }