diff --git a/minecraft-server/start-finalSetup01World b/minecraft-server/start-finalSetup01World
index d6c526a1..aa37b843 100755
--- a/minecraft-server/start-finalSetup01World
+++ b/minecraft-server/start-finalSetup01World
@@ -2,8 +2,8 @@
 
 worldDest=/data/$LEVEL
 
-# If supplied with a URL for a world, download it and unpack
-if [[ "$WORLD" ]]; then
+# If no world exists and a URL for a world is supplied, download it and unpack
+if [[ "$WORLD" ]] && [! -d "$worldDest"]; then
 case "X$WORLD" in
   X[Hh][Tt][Tt][Pp]*)
     echo "Downloading world from $WORLD"