diff --git a/.env.example b/.env.example
index 6455498b..69fa83e3 100644
--- a/.env.example
+++ b/.env.example
@@ -4,6 +4,7 @@
 
 # For database connection. A 16-character password with digits and letters.
 SUPABASE_DB_PASSWORD=
+NEXT_PUBLIC_SUPABASE_KEY=
 
 # For authentication.
 # Ask the project admin. Should start with "AIza".