diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 86078c02..e23db5f6 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -13,10 +13,10 @@ jobs:
       - uses: actions/checkout@master
 
       - name: Doxygen Action
-          uses: mattnotmitt/doxygen-action@v1.1.0
-          with:
-            doxyfile-path: "./Doxyfile"
-            working-directory: "."
+        uses: mattnotmitt/doxygen-action@v1.1.0
+        with:
+          doxyfile-path: "./Doxyfile"
+          working-directory: "."
 
       - name: Deploy to gh-pages 🚀
         uses: peaceiris/actions-gh-pages@v3