diff --git a/packages/nuxt/src/core/nitro.ts b/packages/nuxt/src/core/nitro.ts
index 086fd8ee1d..c938e1ccff 100644
--- a/packages/nuxt/src/core/nitro.ts
+++ b/packages/nuxt/src/core/nitro.ts
@@ -141,7 +141,7 @@ export async function initNitro (nuxt: Nuxt) {
 
   // Add typed route responses
   nuxt.hook('prepare:types', async (opts) => {
-    if (nuxt.options._prepare) {
+    if (!nuxt.options.dev) {
       await scanHandlers(nitro)
       await writeTypes(nitro)
     }