diff --git a/esp-radio/Cargo.toml b/esp-radio/Cargo.toml
index 0a16bc637..5758c939d 100644
--- a/esp-radio/Cargo.toml
+++ b/esp-radio/Cargo.toml
@@ -141,7 +141,8 @@ sniffer = ["wifi"]
 ## Enable BLE support
 ble = ["esp-hal/__bluetooth", "dep:bt-hci"]
 
-## Enable WiFi-BLE coexistence support
+## Software controls Wi-Fi/Bluetooth coexistence.
+## See [ESP-IDF Programming Guide](https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/kconfig-reference.html#config-esp-coex-sw-coexist-enable) for details
 coex = []
 
 ## Enable WiFi channel state information. See [ESP-IDF Programming Guide](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/network/esp_wifi.html#_CPPv4N18wifi_init_config_t10csi_enableE),