diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8f85c908e..f193076c5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -332,6 +332,9 @@ jobs:
       - name: typos
         uses: crate-ci/typos@v1.22.0
 
+      - name: Check the support matrix generation exit code
+        run: ./doc/gen_support_matrix_html.rs generate doc/support_matrix.yml /dev/null
+
       - name: Install mdbook and mdbook utils
         uses: taiki-e/install-action@v2
         with: