diff --git a/plat/st/common/stm32cubeprogrammer_usb.c b/plat/st/common/stm32cubeprogrammer_usb.c
index 19a6bbae8..75e803859 100644
--- a/plat/st/common/stm32cubeprogrammer_usb.c
+++ b/plat/st/common/stm32cubeprogrammer_usb.c
@@ -1,11 +1,12 @@
 /*
- * Copyright (c) 2021, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2021-2022, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
 #include <assert.h>
 #include <errno.h>
+#include <string.h>
 
 #include <tools_share/firmware_image_package.h>