diff --git a/.env.development b/.env.development
index 73ac77e..94b1fc5 100644
--- a/.env.development
+++ b/.env.development
@@ -1,5 +1,7 @@
+# Server URL
 VITE_SERVER_URL=http://125.133.34.224:8080
 
+# Firebase Key
 VITE_API_KEY=AIzaSyCEes510xqP4UyKDt-5yF4QojAIfg_DH8o
 VITE_AUTH_DOMAIN=dice-dev-a5b63.firebaseapp.com
 VITE_PROJECT_ID=dice-dev-a5b63
diff --git a/.env.production b/.env.production
index 8b9e4f7..b74209e 100644
--- a/.env.production
+++ b/.env.production
@@ -1,5 +1,7 @@
+# Server URL
 VITE_SERVER_URL=
 
+# Firebase Key
 VITE_API_KEY=
 VITE_AUTH_DOMAIN=
 VITE_PROJECT_ID=
diff --git a/.env.staging b/.env.staging
index 8b9e4f7..b74209e 100644
--- a/.env.staging
+++ b/.env.staging
@@ -1,5 +1,7 @@
+# Server URL
 VITE_SERVER_URL=
 
+# Firebase Key
 VITE_API_KEY=
 VITE_AUTH_DOMAIN=
 VITE_PROJECT_ID=