diff --git a/components/nvs_flash/test_nvs_host/test_spi_flash_emulation.cpp b/components/nvs_flash/test_nvs_host/test_spi_flash_emulation.cpp
index 0c77aa9669..28ee377d37 100644
--- a/components/nvs_flash/test_nvs_host/test_spi_flash_emulation.cpp
+++ b/components/nvs_flash/test_nvs_host/test_spi_flash_emulation.cpp
@@ -14,6 +14,7 @@
 #include "catch.hpp"
 #include "esp_spi_flash.h"
 #include "spi_flash_emulation.h"
+#include <functional>
 
 using namespace std;