diff --git a/squirrelbattle/mapgeneration/broguelike.py b/squirrelbattle/mapgeneration/broguelike.py
index 1a6f70c..6101ceb 100644
--- a/squirrelbattle/mapgeneration/broguelike.py
+++ b/squirrelbattle/mapgeneration/broguelike.py
@@ -52,6 +52,17 @@ class Generator:
             for rx in range(rw):
                 if room[y][x] == Tile.FLOOR:
                     level[y-door_y][y-door_x] = Tile.FLOOR
+
+    @staticmethod
+    def place_walls(level):
+        h, w = len(level), len(level[0])
+        for y in range(h):
+            for x in range(w):
+                if level[y][x] == Tile.FLOOR:
+                    for dy, dx in Map.neighbourhood(level, y, x):
+                        if level[y+dy][x+dx] == Tile.EMPTY:
+                            level[y+dy][x+dx] = Tile.FLOOR
+ 
     def corr_meta_info(self):
         if random() < self.params["corridor_chance"]:
             h_sup = randint(self.params["min_h_corr"], \