diff --git a/components/esp_wifi/include/esp_now.h b/components/esp_wifi/include/esp_now.h
index 728c69ba5e..3e8e8e299d 100644
--- a/components/esp_wifi/include/esp_now.h
+++ b/components/esp_wifi/include/esp_now.h
@@ -97,6 +97,7 @@ typedef struct esp_now_rate_config {
     wifi_phy_mode_t phymode;                 /**< ESPNOW phymode of specified interface */
     wifi_phy_rate_t rate;                    /**< ESPNOW rate of specified interface*/
     bool ersu;                               /**< ESPNOW using ersu send frame*/
+    bool dcm;                                /**< ESPNOW using dcm rate to send frame*/
 } esp_now_rate_config_t;
 
 /**
diff --git a/components/esp_wifi/include/esp_wifi_he_types.h b/components/esp_wifi/include/esp_wifi_he_types.h
index 01f753dddb..507367e53a 100644
--- a/components/esp_wifi/include/esp_wifi_he_types.h
+++ b/components/esp_wifi/include/esp_wifi_he_types.h
@@ -157,7 +157,7 @@ typedef struct {
     unsigned : 15;                                /**< reserved */
     unsigned : 15;                                /**< reserved */
     unsigned : 2;                                 /**< reserved */
-    unsigned noise_floor : 8;                     /**< the noise floor of the reception frame */
+    signed noise_floor : 8;                       /**< the noise floor of the reception frame */
     unsigned channel : 4;                         /**< the primary channel */
     unsigned second : 4;                          /**< the second channel if in HT40 */
     unsigned : 8;                                 /**< reserved */