diff --git a/apps/Crafter.lua b/apps/Crafter.lua
index c8c86c0..b90779f 100644
--- a/apps/Crafter.lua
+++ b/apps/Crafter.lua
@@ -1080,7 +1080,7 @@ end
 -- randomly errors in 1.7x with "you are not attached to this computer"
 local retryCount = 0
 for _ = 1, 3 do
-  machines = { }
+  Util.clear(machines)
   local s, m = pcall(findMachines)
   if not s and m then
     _G.printError(m)