diff --git a/docs/library/network.WLAN.rst b/docs/library/network.WLAN.rst
index 72091d0ea5..274681f178 100644
--- a/docs/library/network.WLAN.rst
+++ b/docs/library/network.WLAN.rst
@@ -132,4 +132,5 @@ Methods
    password       Access password (string)
    dhcp_hostname  The DHCP hostname to use
    reconnects     Number of reconnect attempts to make (integer, 0=none, -1=unlimited)
+   txpower        Maximum transmit power in dBm (integer or float)
    =============  ===========