diff --git a/gameserver/src/main/resources/prefabs/spawn_building_brain_1/config.json b/gameserver/src/main/resources/prefabs/spawn_building_brain_1/config.json
index 6e97472..086a9ce 100644
--- a/gameserver/src/main/resources/prefabs/spawn_building_brain_1/config.json
+++ b/gameserver/src/main/resources/prefabs/spawn_building_brain_1/config.json
@@ -1,10 +1,4 @@
 {
-  "dungeon": false,
-  "ruin": false,
-  "loot": false,
-  "decay": false,
-  "mirrorable": false,
-  "replace": {},
-  "corresponding_replace": {},
-  "metadata": {}
+  "decay": true,
+  "mirrorable": true
 }
\ No newline at end of file
diff --git a/gameserver/src/main/resources/prefabs/spawn_building_deep_1/config.json b/gameserver/src/main/resources/prefabs/spawn_building_deep_1/config.json
index 6e97472..a4fa9e0 100644
--- a/gameserver/src/main/resources/prefabs/spawn_building_deep_1/config.json
+++ b/gameserver/src/main/resources/prefabs/spawn_building_deep_1/config.json
@@ -1,10 +1,3 @@
 {
-  "dungeon": false,
-  "ruin": false,
-  "loot": false,
-  "decay": false,
-  "mirrorable": false,
-  "replace": {},
-  "corresponding_replace": {},
-  "metadata": {}
+  "decay": true
 }
\ No newline at end of file