diff --git a/compost_control.lua b/compost_control.lua
index cb700cb..6d8c494 100644
--- a/compost_control.lua
+++ b/compost_control.lua
@@ -56,7 +56,7 @@ function move_all (src, dest)
 end
 
 while true do
-    move_all(COMPOST_OUTPUT, STORAGE)
+    if STORAGE ~= "" then move_all(COMPOST_OUTPUT, STORAGE) end
     for _, source in ipairs(SOURCES) do
         local totals = tally_up(source)
         local diffs = compare_counts(totals, CHECKS)