diff --git a/spectrum/src/sample.cfg b/spectrum/src/sample.cfg
index 8406774269b66510d17d2c66631fe484759b580f..85030ceda862a5a1decff98abf37acc33d088406 100644
--- a/spectrum/src/sample.cfg
+++ b/spectrum/src/sample.cfg
@@ -6,6 +6,8 @@ port = 5222
 server_mode = 1
 backend_host=localhost # < this option doesn't work yet
 backend_port=10001
+#cert= #patch to PKCS#12 certificate
+#cert_password= #password to that certificate if any
 users_per_backend=2
 backend=../../backends/libpurple/libpurple_backend
 #backend=../../backends/libircclient-qt/libircclient-qt_backend