diff --git a/.github/workflows/doxygen-gh-pages.yml b/.github/workflows/doxygen-gh-pages.yml
index dc5b210..82bc360 100644
--- a/.github/workflows/doxygen-gh-pages.yml
+++ b/.github/workflows/doxygen-gh-pages.yml
@@ -3,12 +3,12 @@ name: Doxygen GitHub Pages Deploy Action
 on:
   push:
     branches:
-	  - devel
+      - devel
 
 jobs:
   deploy:
     runs-on: ubuntu-latest
-	steps:
-	  - uses: DenverCoder1/doxygen-github-pages-action@v1.3.0
-	    with:
-		  github_token: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
+    steps:
+      - uses: DenverCoder1/doxygen-github-pages-action@v1.3.0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file