diff --git a/docs/source/bbsim_config.rst b/docs/source/bbsim_config.rst
index 9e614af..e07ab20 100644
--- a/docs/source/bbsim_config.rst
+++ b/docs/source/bbsim_config.rst
@@ -55,6 +55,8 @@
            IP address:port (default ":50060")
      -pon int
            Number of PON ports per OLT device to be emulated (default 1)
+     -pots int
+           Number of POTS UNI Ports per ONU device to be emulated (default 0)
      -rest_api_address string
            IP address:port (default ":50071")
      -services string