diff --git a/Controller/CropController.lua b/Controller/CropController.lua
index cd892cc..2702f93 100644
--- a/Controller/CropController.lua
+++ b/Controller/CropController.lua
@@ -1,12 +1,11 @@
 CropController = {}
-CropController.interval = 900
 
 function CropController:new(t)
     t = t or {}
     setmetatable(t, self)
     self.__index = self
     t.matrix = {}
-    t.stats = {}
+    t.stats = {interval = 900}
     return t
 end
 
@@ -151,11 +150,11 @@ function CropController:harvest()
     self:doAction(self.slaveID, "harvest")
     local s, duration = self:doAction(self.slaveID, "getLastHarvestDuration")
     if s == true then
-        self.stats.lastHarvestDuration = duration
+        self.stats["Last harvest duration"] = duration
     end
     local s, yield = self:doAction(self.slaveID, "getLastYield")
     if s == true then
-        self.stats.lastYield = yield
+        self.stats["Last yield"] = yield
     end
     self:getMatrix()
 end