diff --git a/lib/internal/bundle.js b/lib/internal/bundle.js
index cedb518d..bed4fe03 100644
--- a/lib/internal/bundle.js
+++ b/lib/internal/bundle.js
@@ -111,6 +111,8 @@ async function buildOutputOptions(options) {
 
     if (!isHtml(options.output)) {
       await mkdirpAsync(path.resolve(options.output));
+    } else {
+      await mkdirpAsync(path.dirname(options.output));
     }
   }