diff --git a/drivers/mtd_spi_nor/mtd_spi_nor.c b/drivers/mtd_spi_nor/mtd_spi_nor.c
index e0b1ff6c01..9e75bd7b02 100644
--- a/drivers/mtd_spi_nor/mtd_spi_nor.c
+++ b/drivers/mtd_spi_nor/mtd_spi_nor.c
@@ -501,9 +501,9 @@ static int mtd_spi_nor_init(mtd_dev_t *mtd)
     _init_pins(dev);
 
     /* power up the MTD device*/
-    DEBUG("mtd_spi_nor_init: power up MTD device");
+    DEBUG_PUTS("mtd_spi_nor_init: power up MTD device");
     if (mtd_spi_nor_power(mtd, MTD_POWER_UP)) {
-        DEBUG("mtd_spi_nor_init: failed to power up MTD device");
+        DEBUG_PUTS("mtd_spi_nor_init: failed to power up MTD device");
         return -EIO;
     }