diff --git a/doc/efun/tls_refresh_certs b/doc/efun/tls_refresh_certs
index c8364c5..995b6e4 100644
--- a/doc/efun/tls_refresh_certs
+++ b/doc/efun/tls_refresh_certs
@@ -5,8 +5,13 @@
 DESCRIPTION
         Reload the certificates and certificate revocation information.
 
-BUGS
-        Not supported when using GnuTLS.
+        If there are no key and certificate files to be found, this efun
+        will keep the current keys and certificates, to keep TLS working.
+        CAs and CRLs are cleared and reloaded in any case.
+
+        Note that when using GnuTLS a call to tls_refresh_certs()
+        while a connection is in the middle of a TLS handshake might
+        result in a wrong key to be used.
 
 HISTORY
         Introduced in LDMud 3.3.714/3.2.15.