diff --git a/esphome/components/espnow/espnow_packet.h b/esphome/components/espnow/espnow_packet.h
index badbc0d10b..e288cfa394 100644
--- a/esphome/components/espnow/espnow_packet.h
+++ b/esphome/components/espnow/espnow_packet.h
@@ -2,6 +2,8 @@
 
 #if defined(USE_ESP32)
 
+#include <string.h>
+#include <stdlib.h>
 #include "esphome/core/helpers.h"
 
 #include "esp_crc.h"