diff --git a/machines.lua b/machines.lua
index 6a14a29..a4b67b1 100644
--- a/machines.lua
+++ b/machines.lua
@@ -407,11 +407,11 @@ local function registerSimpleElectricItemProcessor(config)
 			if meta:get_float("srcTime")>=meta:get_float("maxSrcTime") then
 				local output=craftResultProxy(config.method,srcSlot)
 				if output.item:get_count()>0 then
-					inv:set_stack("src",1,output.src)
 					inv:add_item("dst",output.item)
 					meta:set_float("srcTime",-1)
 					meta:set_float("maxSrcTime",0)
 				end
+				inv:set_stack("src",1,output.src)
 			end
 			if not industrialtest.api.isFullyCharged(meta) then
 				industrialtest.api.triggerNeighbours(pos)