diff --git a/drivers/include/sdcard_spi.h b/drivers/include/sdcard_spi.h
index 5c78dadd5e..93a3240640 100644
--- a/drivers/include/sdcard_spi.h
+++ b/drivers/include/sdcard_spi.h
@@ -198,7 +198,7 @@ typedef struct {
 /**
  * @brief              Initializes the sd-card with the given parameters in sdcard_spi_t structure.
  *                     The init procedure also takes care of initializing the spi peripheral to master
- *                     mode and performing all neccecary steps to set the sd-card to spi-mode. Reading
+ *                     mode and performing all necessary steps to set the sd-card to spi-mode. Reading
  *                     the CID and CSD registers is also done within this routine and their
  *                     values are copied to the given sdcard_spi_t struct.
  *
diff --git a/drivers/sdcard_spi/include/sdcard_spi_internal.h b/drivers/sdcard_spi/include/sdcard_spi_internal.h
index be0d873b7d..aa1ca9e1a6 100644
--- a/drivers/sdcard_spi/include/sdcard_spi_internal.h
+++ b/drivers/sdcard_spi/include/sdcard_spi_internal.h
@@ -35,7 +35,7 @@ extern "C" {
 
 
 /* number of clocks that should be applied to the card on init
-   before taking furter actions (see sd spec. 6.4.1.1 Power Up Time of Card) */
+   before taking further actions (see sd spec. 6.4.1.1 Power Up Time of Card) */
 #define SD_POWERSEQUENCE_CLOCK_COUNT 74
 
 #define SD_CARD_PREINIT_CLOCK_PERIOD_US 10 /* used to generate 100 kHz clock in init phase*/
@@ -100,7 +100,7 @@ extern "C" {
 #define SD_CMD_24 24 /* Writes a block of the size selected by the SET_BLOCKLEN command */
 #define SD_CMD_25 25 /* Continuously writes blocks of data until 'Stop Tran'token is sent */
 #define SD_CMD_41 41 /* Reserved (used for ACMD41) */
-#define SD_CMD_55 55 /* Defines to the card that the next commmand is an application specific
+#define SD_CMD_55 55 /* Defines to the card that the next command is an application specific
                         command rather than a standard command */
 #define SD_CMD_58 58 /* Reads the OCR register of a card */
 #define SD_CMD_59 59 /* Turns the CRC option on or off. Argument: 1:on; 0:off */
diff --git a/drivers/sdcard_spi/sdcard_spi.c b/drivers/sdcard_spi/sdcard_spi.c
index 5e5aa90abe..d650d749cf 100644
--- a/drivers/sdcard_spi/sdcard_spi.c
+++ b/drivers/sdcard_spi/sdcard_spi.c
@@ -228,7 +228,7 @@ static sd_init_fsm_state_t _init_sd_fsm_step(sdcard_spi_t *card, sd_init_fsm_sta
 
         case SD_INIT_SEND_CMD1:
             DEBUG("SD_INIT_SEND_CMD1\n");
-            DEBUG("COULD TRY CMD1 (for MMC-card)-> currently not suported\n");
+            DEBUG("COULD TRY CMD1 (for MMC-card)-> currently not supported\n");
             _unselect_card_spi(card);
             return SD_INIT_CARD_UNKNOWN;