diff --git a/packages/nitro/src/config.ts b/packages/nitro/src/config.ts
index dd7143eb5b..a3163547be 100644
--- a/packages/nitro/src/config.ts
+++ b/packages/nitro/src/config.ts
@@ -52,10 +52,6 @@ export function getoptions (nuxtOptions: NuxtOptions): SLSOptions {
     inlineChunks: true
   }
 
-  if (Array.isArray(nuxtOptions.generate.routes)) {
-    defaults.static = nuxtOptions.generate.routes
-  }
-
   let target = process.env.NUXT_SLS_TARGET || nuxtOptions.serverless.target || 'node'
   if (typeof target === 'function') {
     target = target(nuxtOptions)
diff --git a/packages/nitro/src/index.ts b/packages/nitro/src/index.ts
index 108cf714e5..eb2a531e86 100644
--- a/packages/nitro/src/index.ts
+++ b/packages/nitro/src/index.ts
@@ -19,6 +19,12 @@ export default <Module> function slsModule () {
   nuxt.options.build.standalone = true
 
   nuxt.options.generate.crawler = false
+  if (Array.isArray(nuxt.options.generate.routes)) {
+    nuxt.options.generate.routes = Array.from(new Set([
+      ...nuxt.options.generate.routes,
+      ...options.static
+    ]))
+  }
 
   nuxt.hook('generate:cache:ignore', (ignore) => {
     ignore.push(options.slsDir)