diff --git a/packages/docusaurus/src/commands/build.ts b/packages/docusaurus/src/commands/build.ts
index 17952898f6..199886707f 100644
--- a/packages/docusaurus/src/commands/build.ts
+++ b/packages/docusaurus/src/commands/build.ts
@@ -190,6 +190,10 @@ async function buildLocale({
     }
   });
 
+  if (router) {
+    return 'end';
+  }
+
   const {collectedData} = await PerfLogger.async('SSG', () =>
     executeSSG({
       props,