diff --git a/packages/cli/src/commands/devHandler.js b/packages/cli/src/commands/devHandler.js
index fe7982d18e41..7ea845ed2683 100644
--- a/packages/cli/src/commands/devHandler.js
+++ b/packages/cli/src/commands/devHandler.js
@@ -15,7 +15,7 @@ import { generatePrismaClient } from '../lib/generatePrismaClient'
 import { getFreePort } from '../lib/ports'
 import { serverFileExists } from '../lib/project'
 
-const defaultApiDebugPort = 18911
+const defaultApiDebugPort = parseInt(`1${getConfig().api.port}`)
 
 export const handler = async ({
   side = ['api', 'web'],