diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 911bef1..c45ae33 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -21,10 +21,10 @@ jobs:
         run: sudo apt-get install emacs26
 
       - name: install htmlize
-	run: git clone https://github.com/hniksic/emacs-htmlize && cp emacs-htmlize/htmlize.el src/
+        run: git clone https://github.com/hniksic/emacs-htmlize && cp emacs-htmlize/htmlize.el src/
 
       - name: install htmlize
-	run: git clone https://github.com/hniksic/emacs-htmlize
+        run: git clone https://github.com/hniksic/emacs-htmlize
 
       - name: make
         run: make -C src/ doc