diff --git a/ports/espressif/esp-idf-config/sdkconfig.defaults b/ports/espressif/esp-idf-config/sdkconfig.defaults
index 03924c89f8..9e471a021c 100644
--- a/ports/espressif/esp-idf-config/sdkconfig.defaults
+++ b/ports/espressif/esp-idf-config/sdkconfig.defaults
@@ -38,10 +38,6 @@ CONFIG_ESP_MAIN_TASK_STACK_SIZE=16384
 #
 # Wi-Fi
 
-# Broken for C6
-# CONFIG_ESP_WIFI_DYNAMIC_RX_BUFFER_NUM=8
-# CONFIG_ESP_WIFI_STATIC_TX_BUFFER=y
-
 # CONFIG_ESP_WIFI_NVS_ENABLED is not set
 # end of Wi-Fi