diff --git a/docs/conf.py b/docs/conf.py
index 0157ce65..ae0196b7 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,9 +1,3 @@
-"""Configuration file for the Sphinx documentation builder.
-
-This file only contains a selection of the most common options. For a full list see the
-documentation: https://www.sphinx-doc.org/en/master/usage/configuration.html
-"""
-
 from __future__ import annotations
 
 from sphinx_api_relink.helpers import get_package_version
diff --git a/pyproject.toml b/pyproject.toml
index e0d30842..8d5ebd36 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -304,6 +304,7 @@ known-first-party = ["repoma"]
     "S113",
     "T201",
 ]
+"docs/conf.py" = ["D100"]
 "setup.py" = ["D100"]
 "tests/*" = [
     "D",
diff --git a/src/repoma/check_dev_files/ruff.py b/src/repoma/check_dev_files/ruff.py
index 5efd22ee..82f27c44 100644
--- a/src/repoma/check_dev_files/ruff.py
+++ b/src/repoma/check_dev_files/ruff.py
@@ -474,6 +474,13 @@ def _update_ruff_per_file_ignores(has_notebooks: bool) -> None:
             "S113",  # requests call without timeout
         }
         minimal_settings[key] = __merge_rules(default_ignores, settings.get(key, []))
+    conf_path = f"{docs_dir}/conf.py"
+    if os.path.exists(conf_path):
+        key = f"{conf_path}"
+        default_ignores = {
+            "D100",  # no module docstring
+        }
+        minimal_settings[key] = __merge_rules(default_ignores, settings.get(key, []))
     if os.path.exists("setup.py"):
         minimal_settings["setup.py"] = to_toml_array(["D100"])
     tests_dir = "tests"