diff --git a/page.go b/page.go
index 18d2343..0b50c09 100644
--- a/page.go
+++ b/page.go
@@ -242,7 +242,7 @@ func (p *Page) write(dstDir string, task *Task) error {
 	}
 	// Write index page
 	if p.index {
-		dstPath := pathpkg.Join(dirPath, p.Permalink, "index"+task.OutputExt)
+		dstPath := pathpkg.Join(dstDir, p.Permalink, "index"+task.OutputExt)
 		if err := p.writeTo(dstPath, task); err != nil {
 			return err
 		}