diff --git a/.github/workflows/chm.yml b/.github/workflows/chm.yml
index 0456d72d7..e98d9cdf9 100644
--- a/.github/workflows/chm.yml
+++ b/.github/workflows/chm.yml
@@ -28,3 +28,8 @@ jobs:
 
     - name: '🧰 Checkout'
       uses: actions/checkout@v4
+
+    - name: 'fixup_html'
+      shell: bash
+      working-directory: ./HTMLversion/HTML
+      run: ./fixup_html.bash