diff --git a/squirrelbattle/mapgeneration/randomwalk.py b/squirrelbattle/mapgeneration/randomwalk.py
index 688c92c..419d342 100644
--- a/squirrelbattle/mapgeneration/randomwalk.py
+++ b/squirrelbattle/mapgeneration/randomwalk.py
@@ -48,7 +48,7 @@ class Walker:
 
     def move_in_bounds(self, width: int, height: int) -> None:
         nx, ny = self.next_pos()
-        if 0 < nx < width and 0 < ny < height:
+        if 0 < nx < width-1 and 0 < ny < height-1:
             self.x, self.y = nx, ny
 
     def split(self) -> "Walker":
@@ -106,7 +106,7 @@ class Generator:
         for x in range(width):
             for y in range(height):
                 if grid[y][x] == Tile.EMPTY:
-                    c = sum([1 if grid[j][i] == Tile.FLOOR else 0 for j, i in Map.neighbourhood(grid, y, x, large=True)])
+                    c = sum([1 if grid[j][i] == Tile.FLOOR else 0 for j, i in Map.neighbourhood(grid, y, x)])
                     if c == 4 and self.params["no_lone_walls"]:
                         result.tiles[y][x] = Tile.FLOOR
                     elif c > 0: