diff --git a/packages/next/src/cli/next-dev.ts b/packages/next/src/cli/next-dev.ts
index 98f053a7f617e..275a7b8286a18 100644
--- a/packages/next/src/cli/next-dev.ts
+++ b/packages/next/src/cli/next-dev.ts
@@ -231,6 +231,7 @@ const nextDev: CliCommand = async (args) => {
   }
 
   if (process.env.TURBOPACK) {
+    isTurboSession = true
     await validateTurboNextConfig({
       ...devServerOptions,
       isDev: true,