diff --git a/UPGRADE.md b/UPGRADE.md
index 1c54eb4a..d1803fcd 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -27,3 +27,4 @@
 
 1. Run the upgrade script
     * `sudo /bin/bash /opt/wrolpi/upgrade.sh`
+    * (If the upgrade script does not exist, run the installation script:  `sudo /bin/bash /opt/wrolpi/install.sh`)