diff --git a/.env.example b/.env.example
index c5fe901..eb55f22 100644
--- a/.env.example
+++ b/.env.example
@@ -1,3 +1,3 @@
-DOMAIN = "MY_DOMAIN"
+SUBDOMAIN = "MY_SUBDOMAIN"
 APPID = "APP_ID"
 APITOKEN = "MY_API_TOKEN_WITH_GET_PERMISSIONS"
\ No newline at end of file
diff --git a/backend/server.js b/backend/server.js
index b11553f..4758c22 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -10,7 +10,7 @@ dotenv.config({ path: '../.env' })
 ViteExpress.config({ mode: "production" })
 
 // Get Kintone credentials from a .env file
-const domain = process.env.DOMAIN;
+const subdomain = process.env.SUBDOMAIN;
 const appID = process.env.APPID;
 const apiToken = process.env.APITOKEN;
 
@@ -24,7 +24,7 @@ const corsOptions = {
 };
 
 // Kintone's records endpoint
-const multipleRecordsEndpoint = `https://${domain}.cybozu.com/k/v1/records.json?app=${appID}`
+const multipleRecordsEndpoint = `https://${subdomain}.cybozu.com/k/v1/records.json?app=${appID}`
 
 // GET data from our Kintone database
 app.get('/getData', cors(corsOptions), async (req, res) => {