diff --git a/source/astar.py b/source/astar.py
index 943ab6f..bf346a0 100644
--- a/source/astar.py
+++ b/source/astar.py
@@ -80,7 +80,7 @@ def tile_cost(tile):
     if tile.image == "resources/images/sampling.png":
         return 100
     if tile.image == "resources/images/rock_dirt.png":
-        return 500
+        return 1000
     else:
         return 1