diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e269152..33a0bb2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -93,4 +93,17 @@ jobs:
         python3 -m pip install restructuredtext-lint pygments
         rst-lint --level=info --encoding=UTF-8 doc/README
 
+  manpage:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: install deps
+      run: |
+        printf 'Apt::Install-Recommends "false";\n' | sudo tee -a /etc/apt/apt.conf
+        sudo apt-get update
+        sudo apt-get install mandoc
+    - name: run mandoc lint
+      run: |
+        mandoc -T lint doc/*.1
+
 # vim:ts=2 sts=2 sw=2 et