diff --git a/lib/esp32/net/ethernet.toit b/lib/esp32/net/ethernet.toit
index 9066e12c9..73a831433 100644
--- a/lib/esp32/net/ethernet.toit
+++ b/lib/esp32/net/ethernet.toit
@@ -83,10 +83,11 @@ main:
 
 # Olimex Ethernet boards
 The Olimex Ethernet boards (Gateway and ESP32-POE)
-  need an envelope with an RMII clock output: `esp32-eth-clk-out17`.
+  need an envelope with an RMII clock output: `esp32-eth-clk-out17`
+  (WROOM) or `esp32-eth-clk-out0-spiram` (WROVER).
 
-This firmware contains the following sdk-config change (enable
-  `CONFIG_ETH_RMII_CLK_OUTPUT`):
+This firmware contains the sdk-config change to enable
+  `CONFIG_ETH_RMII_CLK_OUTPUT` (here shown for the WROOM):
 
 ```
 --- b/toolchains/esp32/sdkconfig
@@ -108,9 +109,8 @@ This firmware contains the following sdk-config change (enable
 ```
 
 # Lilygo T-Internet-COM
-
 The [Lilygo T-Internet-COM](https://lilygo.cc/products/t-internet-com) is similar
-  to the Olimex board. It uses the `esp32-eth-clk-out17-spiram` envelope
+  to the Olimex board. It uses the `esp32-eth-clk-out0-spiram` envelope
   and GPIO 4 as power pin. The rest is the same.
 */
 class EthernetServiceProvider extends EthernetServiceProviderBase_: