diff --git a/post-update.sh b/post-update.sh
new file mode 100644
index 0000000..c9af627
--- /dev/null
+++ b/post-update.sh
@@ -0,0 +1,28 @@
+#./install-chunkymap-on-ubuntu.sh
+CHUNKYMAP_INSTALLER_DIR=$HOME/Downloads/minetest-chunkymap
+CHUNKYMAP_DEST=$HOME/chunkymap
+if [ ! -d "$HOME/Downloads" ]; then
+	mkdir "$HOME/Downloads"
+fi
+cd $HOME/Downloads
+chmod +x "$CHUNKYMAP_INSTALLER_DIR/install-chunkymap-on-ubuntu.sh"
+echo ""
+echo "running install-chunkymap-on-ubuntu.sh..."
+sh "$CHUNKYMAP_INSTALLER_DIR/install-chunkymap-on-ubuntu.sh"
+echo "...returned to update-chunkymap-on-ubuntu-from-web.sh"
+echo ""
+MT_MY_WEBSITE_PATH=/var/www/html/minetest
+
+# IF already installed to default MT_MY_WEBSITE_PATH, update the files:
+if [ -f "$HOME/chunkymap/web/chunkymap.php" ]; then
+	if [ -f "$MT_MY_WEBSITE_PATH/chunkymap.php" ]; then
+		sudo cp -f "$HOME/chunkymap/web/chunkymap.php" "$MT_MY_WEBSITE_PATH/"
+		echo "updated $MT_MY_WEBSITE_PATH/chunkymap.php"
+		#sudo cp --no-clobber "$HOME/Downloads/minetest-chunkymap/web/viewchunkymap.php" "$MT_MY_WEBSITE_PATH/viewchunkymap.php"
+		sudo cp -f "$HOME/chunkymap/web/viewchunkymap.php" "$MT_MY_WEBSITE_PATH/viewchunkymap.php"
+		echo "updated $MT_MY_WEBSITE_PATH/viewchunkymap.php"
+		# cannot put wildcard in quotes on unix
+		#sudo cp -R --no-clobber $HOME/Downloads/minetest-chunkymap/web/images/* "$MT_MY_WEBSITE_PATH/images/"
+		#--no-clobber: do not overwrite existing
+	fi
+fi
diff --git a/update-chunkymap-on-ubuntu-from-web.sh b/update-chunkymap-on-ubuntu-from-web.sh
index 1c9cfdc..84f87ef 100644
--- a/update-chunkymap-on-ubuntu-from-web.sh
+++ b/update-chunkymap-on-ubuntu-from-web.sh
@@ -19,29 +19,10 @@ fi
 #sh "$CHUNKYMAP_INSTALLER_DIR/update-chunkymap-installer-only.sh"
 if [ -f "$CHUNKYMAP_DEST/update-chunkymap-installer-only.sh" ]; then
 	sh "$CHUNKYMAP_DEST/update-chunkymap-installer-only.sh"
+	#further instructions are in separate file in case updater was updated:
+	sh "$CHUNKYMAP_DEST/post-update.sh"
 else
 	sh "$CHUNKYMAP_INSTALLER_DIR/update-chunkymap-installer-only.sh"
-fi
-#./install-chunkymap-on-ubuntu.sh
-cd $HOME/Downloads
-chmod +x "$CHUNKYMAP_INSTALLER_DIR/install-chunkymap-on-ubuntu.sh"
-echo ""
-echo "running install-chunkymap-on-ubuntu.sh..."
-sh "$CHUNKYMAP_INSTALLER_DIR/install-chunkymap-on-ubuntu.sh"
-echo "...returned to update-chunkymap-on-ubuntu-from-web.sh"
-echo ""
-MT_MY_WEBSITE_PATH=/var/www/html/minetest
-
-# IF already installed to default MT_MY_WEBSITE_PATH, update the files:
-if [ -f "$HOME/chunkymap/web/chunkymap.php" ]; then
-	if [ -f "$MT_MY_WEBSITE_PATH/chunkymap.php" ]; then
-		sudo cp -f "$HOME/chunkymap/web/chunkymap.php" "$MT_MY_WEBSITE_PATH/"
-		echo "updated $MT_MY_WEBSITE_PATH/chunkymap.php"
-		#sudo cp --no-clobber "$HOME/Downloads/minetest-chunkymap/web/viewchunkymap.php" "$MT_MY_WEBSITE_PATH/viewchunkymap.php"
-		sudo cp -f "$HOME/chunkymap/web/viewchunkymap.php" "$MT_MY_WEBSITE_PATH/viewchunkymap.php"
-		echo "updated $MT_MY_WEBSITE_PATH/viewchunkymap.php"
-		# cannot put wildcard in quotes on unix
-		#sudo cp -R --no-clobber $HOME/Downloads/minetest-chunkymap/web/images/* "$MT_MY_WEBSITE_PATH/images/"
-		#--no-clobber: do not overwrite existing
-	fi
+	#further instructions are in separate file in case updater was updated:
+	sh "$CHUNKYMAP_INSTALLER_DIR/post-update.sh"
 fi