diff --git a/storage/itemstack.lua b/storage/itemstack.lua
index 867d999..60f0f95 100644
--- a/storage/itemstack.lua
+++ b/storage/itemstack.lua
@@ -193,8 +193,8 @@ function ItemStack:transferTo(target, count)
     return false, xfer
   end
 
-  self:_modify(-xfer, self)
   target:_modify(xfer, self)
+  self:_modify(-xfer, self)
 
   return xfer == count, xfer
 end