diff --git a/iris.overworld/dimensions/overworld.json b/iris.overworld/dimensions/overworld.json
index 06d88101..33c28080 100644
--- a/iris.overworld/dimensions/overworld.json
+++ b/iris.overworld/dimensions/overworld.json
@@ -9,6 +9,7 @@
     "landZoom": 2.5,
     "shoreZoom": 1.5,
     "seaZoom": 4,
+    "preventLeafDecay": true,
     "interpolationFunction": "BICUBIC",
     "interpolationScale": 12,
     "hermiteTension": 0.00001,