diff --git a/zietenaugust/baumhaus.json b/zietenaugust/baumhaus.json
index 9532649..3f95018 100644
--- a/zietenaugust/baumhaus.json
+++ b/zietenaugust/baumhaus.json
@@ -51,12 +51,6 @@
          "id":9,
          "name":"Mauern",
          "opacity":1,
-         "properties":[
-                {
-                 "name":"collides",
-                 "type":"bool",
-                 "value":true
-                }],
          "type":"tilelayer",
          "visible":true,
          "width":18,