diff --git a/packages/vite/src/executors/build/build.impl.ts b/packages/vite/src/executors/build/build.impl.ts
index bd5b0cd8bd3fa4..e5f8e9eb369941 100644
--- a/packages/vite/src/executors/build/build.impl.ts
+++ b/packages/vite/src/executors/build/build.impl.ts
@@ -129,7 +129,7 @@ export async function* viteBuildExecutor(
       }
     );
 
-    builtPackageJson.type = 'module';
+    builtPackageJson.type ??= 'module';
 
     writeJsonFile(
       `${outDirRelativeToWorkspaceRoot}/package.json`,