diff --git a/components/esp_wifi/src/wifi_init.c b/components/esp_wifi/src/wifi_init.c
index 89746ef82f..d1daf0e19d 100644
--- a/components/esp_wifi/src/wifi_init.c
+++ b/components/esp_wifi/src/wifi_init.c
@@ -576,3 +576,12 @@ void nan_sm_handle_event(void *p1, int p2)
 }
 
 #endif
+
+#if CONFIG_IDF_TARGET_ESP32C2
+#if CONFIG_ESP32C2_REV_MIN_FULL < 200
+void esp32c2_eco4_rom_ptr_init(void)
+{
+    /* Do not remove, stub to overwrite weak link in Wi-Fi Lib */
+}
+#endif
+#endif
diff --git a/components/wpa_supplicant/esp_supplicant/src/esp_wifi_driver.h b/components/wpa_supplicant/esp_supplicant/src/esp_wifi_driver.h
index 8e3d9b5c78..750524a5f3 100644
--- a/components/wpa_supplicant/esp_supplicant/src/esp_wifi_driver.h
+++ b/components/wpa_supplicant/esp_supplicant/src/esp_wifi_driver.h
@@ -57,6 +57,7 @@ typedef enum {
 } wifi_appie_ram_t;
 
 enum {
+    /* this enum is in C2 ROM, do not change before WPA3_AUTH_PSK_EXT_KEY */
     NONE_AUTH           = 0x01,
     WPA_AUTH_UNSPEC     = 0x02,
     WPA_AUTH_PSK        = 0x03,
@@ -73,6 +74,7 @@ enum {
     WPA2_AUTH_FT_PSK    = 0x0e,
     WPA3_AUTH_OWE       = 0x0f,
     WPA3_AUTH_PSK_EXT_KEY = 0x10,
+    /* this enum is in C2 ROM, do not change before WPA3_AUTH_PSK_EXT_KEY */
     WPA2_AUTH_INVALID
 };