diff --git a/docs/source/settings.rst b/docs/source/settings.rst
index 4c8e9212f..a8bb31d39 100644
--- a/docs/source/settings.rst
+++ b/docs/source/settings.rst
@@ -540,6 +540,16 @@ TLS_SERVER    Auto-negotiate the highest protocol version like TLS,
 
 Whether client certificate is required (see stdlib ssl module's)
 
+**Options:** 
+
+`--cert-reqs=0` --- no client veirifcation
+
+`--cert-reqs=1` --- ssl.CERT_OPTIONAL
+
+`--cert-reqs=2` --- ssl.CERT_REQUIRED
+
+
+
 .. _ca-certs:
 
 ``ca_certs``
diff --git a/gunicorn/config.py b/gunicorn/config.py
index bc24b7000..c27775fc2 100644
--- a/gunicorn/config.py
+++ b/gunicorn/config.py
@@ -2088,6 +2088,13 @@ class CertReqs(Setting):
     default = ssl.CERT_NONE
     desc = """\
     Whether client certificate is required (see stdlib ssl module's)
+    ==============  ===========================
+    `--cert-reqs=0` --- no client veirifcation
+
+    `--cert-reqs=1` --- ssl.CERT_OPTIONAL
+
+    `--cert-reqs=2` --- ssl.CERT_REQUIRED
+    ==============  ===========================
     """