diff --git a/recipe.lua b/recipe.lua
index b3123b6..2139414 100644
--- a/recipe.lua
+++ b/recipe.lua
@@ -47,7 +47,7 @@ function prototype:beginCrafting(chests)
         for _,output in pairs(self.outputs) do
             local stackdata = itemstack.fromSlot(output.machine, output.slot)
 
-            if util.fuzzyEquals(stackdata.item, output.item) or output.count > stackdata.count then
+            if (not util.fuzzyEquals(stackdata.item, output.item)) or output.count > stackdata.count then
                 return false
             end
         end