diff --git a/examples/with-mysql/lib/db.ts b/examples/with-mysql/lib/db.ts
index ede9544eca0f477bf9f0d503bed391612500520e..07f3d78e29d672ef089d659009bc4d503e14bf46 100644
--- a/examples/with-mysql/lib/db.ts
+++ b/examples/with-mysql/lib/db.ts
@@ -6,7 +6,7 @@ export const db = mysql({
     database: process.env.MYSQL_DATABASE,
     user: process.env.MYSQL_USERNAME,
     password: process.env.MYSQL_PASSWORD,
-    port: process.env.MYSQL_PORT,
+    port: parseInt(process.env.MYSQL_PORT),
   },
 })