diff --git a/inferium-harvester.lua b/inferium-harvester.lua
index 6dfe0a4..2100d9e 100644
--- a/inferium-harvester.lua
+++ b/inferium-harvester.lua
@@ -2,7 +2,7 @@ local utils = require('libs/utils')
 local turtleUtils = require('libs/turtle-utils')
 local config = require('config/harvesting')
 
-local VERSION = "0.6.0"
+local VERSION = "1.0.0"
 local IDLE_TIME = 2
 local WAIT_ITEM_IDLE_TIME = 5
 local MIN_FUEL_NEEDED = (100 + config.firstCropZ + config.length) * 2
@@ -189,6 +189,10 @@ local function harvestDown(index)
 
   localPlan[index] = seedName
 
+  if not seedName then
+    return false
+  end
+
   if not turtle.digDown() then
     error('turtle cannot harvest crop')
   end
@@ -202,6 +206,8 @@ local function harvestDown(index)
   end
 
   compactIfNeeded()
+
+  return true
 end
 
 
diff --git a/libs/turtle-utils.lua b/libs/turtle-utils.lua
index 75065b1..e8580ac 100644
--- a/libs/turtle-utils.lua
+++ b/libs/turtle-utils.lua
@@ -57,6 +57,10 @@ end
 turtleUtils.waitForMatureCrop = function(inspectFn, sleepTime)
   inspectFn = inspectFn or turtle.inspect
 
+  if not inspectFn() then
+    return nil
+  end
+
   return waitFor(function()
     return turtleUtils.getMatureCrop(inspectFn)
   end, sleepTime)