diff --git a/packages/farm/src/resources/decorators/room.js b/packages/farm/src/resources/decorators/room.js
index 5b3df6f..7a2b6ee 100644
--- a/packages/farm/src/resources/decorators/room.js
+++ b/packages/farm/src/resources/decorators/room.js
@@ -82,7 +82,7 @@ export default (Room) => class FarmableRoom extends Room {
       water,
     } = json;
     if (evaporation) {
-      this.#evaporation = evaporation / 144;
+      this.#evaporation = evaporation;
     }
     if (water) {
       this.water = water;
@@ -145,6 +145,7 @@ export default (Room) => class FarmableRoom extends Room {
   toJSON() {
     return {
       ...super.toJSON(),
+      evaporation: this.#evaporation,
       water: this.water,
     };
   }