diff --git a/.env.example b/.env.example
index adfe836..66d2445 100644
--- a/.env.example
+++ b/.env.example
@@ -12,3 +12,7 @@
 # Example:
 # SERVERVAR="foo"
 # NEXT_PUBLIC_CLIENTVAR="bar"
+# When adding additional environment variables, the schema in "/src/env.js"
+# should be updated accordingly.
+NEXT_PUBLIC_UMAMI_SCRIPT_URL="https://umami.example.com/script.js"
+NEXT_PUBLIC_UMAMI_WEBSITE_ID=""