diff --git a/src/mainboard/intel/adlrvp/romstage_fsp_params.c b/src/mainboard/intel/adlrvp/romstage_fsp_params.c
index 5b02e78cf8..8a179d6d5b 100644
--- a/src/mainboard/intel/adlrvp/romstage_fsp_params.c
+++ b/src/mainboard/intel/adlrvp/romstage_fsp_params.c
@@ -5,7 +5,6 @@
 #include <fsp/api.h>
 #include <soc/romstage.h>
 #include <spd_bin.h>
-#include <string.h>
 #include <soc/meminit.h>
 #include <baseboard/variants.h>
 #include "board_id.h"
diff --git a/src/mainboard/prodrive/hermes/mainboard.c b/src/mainboard/prodrive/hermes/mainboard.c
index d9abb7616f..a5cf887d9f 100644
--- a/src/mainboard/prodrive/hermes/mainboard.c
+++ b/src/mainboard/prodrive/hermes/mainboard.c
@@ -3,7 +3,6 @@
 #include <acpi/acpigen.h>
 #include <device/device.h>
 #include <intelblocks/pmclib.h>
-#include <string.h>
 #include <types.h>
 #include "variants/baseboard/include/eeprom.h"
 #include "gpio.h"
diff --git a/src/mainboard/protectli/vault_bsw/acpi_tables.c b/src/mainboard/protectli/vault_bsw/acpi_tables.c
index 6fc71fe060..87a1c40fce 100644
--- a/src/mainboard/protectli/vault_bsw/acpi_tables.c
+++ b/src/mainboard/protectli/vault_bsw/acpi_tables.c
@@ -4,7 +4,6 @@
 #include <arch/ioapic.h>
 #include <soc/acpi.h>
 #include <soc/nvs.h>
-#include <string.h>
 
 void mainboard_fill_gnvs(struct global_nvs *gnvs)
 {