diff --git a/squirrelbattle/mapgeneration/randomwalk.py b/squirrelbattle/mapgeneration/randomwalk.py
index 913599f..688c92c 100644
--- a/squirrelbattle/mapgeneration/randomwalk.py
+++ b/squirrelbattle/mapgeneration/randomwalk.py
@@ -96,8 +96,8 @@ class Generator:
                         next_walker_pop.append(walker.split())
             walkers = next_walker_pop
 
-        start_x, start_y = randint(0, width - 1), randint(0, height - 1)
-        while grid[start_y][start_x] != Tile.FLOOR:
+        start_x, start_y = -1, -1
+        while grid[start_y][start_x] != Tile.FLOOR or start_x == -1:
             start_x, start_y = randint(0, width - 1), randint(0, height - 1)
 
         result = Map(width, height, grid, start_y, start_x)