diff --git a/docs/curl.1 b/docs/curl.1
index 8b83ea9b18995940a58eb5e04808f8cbc7bee895..0a3629e8f65a8f8fdd3e908a554495d97c2615ec 100644
--- a/docs/curl.1
+++ b/docs/curl.1
@@ -318,6 +318,8 @@ to be made secure by using the CA certificate bundle installed by
 default. This makes all connections considered "insecure" to fail unless
 -k/--insecure is used.
 
+This option is ignored if --cacert or --capath is used!
+
 If this option is used twice, the second time will again disable it.
 .IP "--krb4 <level>"
 (FTP) Enable kerberos4 authentication and use. The level must be entered and