diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index 1b8ad1ef53..c36e7655c0 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -1012,7 +1012,7 @@ void set_dfu_alt_info(char *interface, char *devstr)
 #include <dfu.h>
 #include <power/stpmic1.h>
 
-int dfu_otp_read(u64 offset, u8 *buffer, long *size)
+static int dfu_otp_read(u64 offset, u8 *buffer, long *size)
 {
 	struct udevice *dev;
 	int ret;
@@ -1032,7 +1032,7 @@ int dfu_otp_read(u64 offset, u8 *buffer, long *size)
 	return 0;
 }
 
-int dfu_pmic_read(u64 offset, u8 *buffer, long *size)
+static int dfu_pmic_read(u64 offset, u8 *buffer, long *size)
 {
 	int ret;
 #ifdef CONFIG_PMIC_STPMIC1