diff --git a/src/flash/nor/lpcspifi.c b/src/flash/nor/lpcspifi.c
index 0400dd74d..b30a2d93b 100644
--- a/src/flash/nor/lpcspifi.c
+++ b/src/flash/nor/lpcspifi.c
@@ -774,7 +774,7 @@ static int lpcspifi_read_flash_id(struct flash_bank *bank, uint32_t *id)
 	uint32_t ssp_base = lpcspifi_info->ssp_base;
 	uint32_t io_base = lpcspifi_info->io_base;
 	uint32_t value;
-	uint8_t id_buf[3];
+	uint8_t id_buf[3] = {0, 0, 0};
 	int retval;
 
 	if (target->state != TARGET_HALTED) {