diff --git a/Installation.md b/Installation.md
index ee67dc6..b123cf2 100644
--- a/Installation.md
+++ b/Installation.md
@@ -85,7 +85,8 @@ Use the paths for the client key/certificate rather than the server key/certific
 ## Troubleshooting
 
 If you get an error "404 Not Found":
-- Make sure that you've extracted it to the correct directory (if the "public_html" folder exists, extract to that folder)
+- Check that you've extracted it to the correct directory (if the "public_html" folder exists, extract to that folder)
+- Check that the directory belongs to the correct user (e.g. `www-data`), not `root`.
 
 If you are unable to connect to `localhost` but are certain that there is a database server running on the local machine:
 - Try setting the host to `127.0.0.1` instead of `localhost`. This switches the connection method to TCP. (`localhost` uses local UNIX socket)