diff --git a/examples/device/nrf52840/src/msc_device_app.c b/examples/device/nrf52840/src/msc_device_app.c
index 1dfce5e1..75d33d72 100644
--- a/examples/device/nrf52840/src/msc_device_app.c
+++ b/examples/device/nrf52840/src/msc_device_app.c
@@ -49,8 +49,10 @@
 scsi_sense_fixed_data_t mscd_sense_data =
 {
     .response_code        = 0x70,
+    .valid                = 1,
+
     .sense_key            = 0, // no errors
-    .additional_sense_len = sizeof(scsi_sense_fixed_data_t) - 8
+    .add_sense_len = sizeof(scsi_sense_fixed_data_t) - 8
 };
 
 static scsi_mode_parameters_t const msc_dev_mode_para =
@@ -106,11 +108,11 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
       len = 0;
     break;
 
-    case SCSI_CMD_START_STOP_UNIT:
-      // Host try to eject/safe remove/powerof us. We could safely disconnect with disk storage, or go into lower power
-      // scsi_start_stop_unit_t const * cmd_start_stop = (scsi_start_stop_unit_t const *) scsi_cmd
-      len = 0;
-    break;
+//    case SCSI_CMD_START_STOP_UNIT:
+//      // Host try to eject/safe remove/powerof us. We could safely disconnect with disk storage, or go into lower power
+//      // scsi_start_stop_unit_t const * cmd_start_stop = (scsi_start_stop_unit_t const *) scsi_cmd
+//      len = 0;
+//    break;
 
     default:
       // negative is error -> Data stage is STALL, status = failed
@@ -135,8 +137,8 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
   if ( SCSI_CMD_REQUEST_SENSE != scsi_cmd[0] )
   {
     mscd_sense_data.sense_key                  = SCSI_SENSEKEY_NONE;
-    mscd_sense_data.additional_sense_code      = 0;
-    mscd_sense_data.additional_sense_qualifier = 0;
+    mscd_sense_data.add_sense_code      = 0;
+    mscd_sense_data.add_sense_qualifier = 0;
   }
 
   return len;
diff --git a/examples/obsolete/device/src/msc_device_app.c b/examples/obsolete/device/src/msc_device_app.c
index 572c90ef..0831d444 100644
--- a/examples/obsolete/device/src/msc_device_app.c
+++ b/examples/obsolete/device/src/msc_device_app.c
@@ -67,7 +67,7 @@ static scsi_sense_fixed_data_t mscd_sense_data =
 {
     .response_code        = 0x70,
     .sense_key            = 0, // no errors
-    .additional_sense_len = sizeof(scsi_sense_fixed_data_t) - 8
+    .add_sense_len = sizeof(scsi_sense_fixed_data_t) - 8
 };
 
 static scsi_read_format_capacity_data_t const mscd_format_capacity_data =
@@ -169,8 +169,8 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
   if ( SCSI_CMD_REQUEST_SENSE != scsi_cmd[0] )
   {
     mscd_sense_data.sense_key                  = SCSI_SENSEKEY_NONE;
-    mscd_sense_data.additional_sense_code      = 0;
-    mscd_sense_data.additional_sense_qualifier = 0;
+    mscd_sense_data.add_sense_code      = 0;
+    mscd_sense_data.add_sense_qualifier = 0;
   }
 
   return len;
diff --git a/src/class/msc/msc.h b/src/class/msc/msc.h
index 333bb4d2..290ee255 100644
--- a/src/class/msc/msc.h
+++ b/src/class/msc/msc.h
@@ -237,25 +237,25 @@ VERIFY_STATIC(sizeof(scsi_inquiry_data_t) == 36, "size is not correct");
 
 typedef struct ATTR_PACKED
 {
-  uint8_t response_code           : 7; ///< 70h - current errors, Fixed Format 71h - deferred errors, Fixed Format
-  uint8_t valid                   : 1;
+  uint8_t response_code : 7; ///< 70h - current errors, Fixed Format 71h - deferred errors, Fixed Format
+  uint8_t valid         : 1;
 
-  uint8_t reserved; ///< Obsolete
+  uint8_t TU_RESERVED;
 
-  uint8_t sense_key               : 4;
-  uint8_t                         : 1;
-  uint8_t incorrect_len_idicatior : 1;
-  uint8_t end_of_medium           : 1;
-  uint8_t filemark                : 1;
+  uint8_t sense_key     : 4;
+  uint8_t               : 1;
+  uint8_t ili           : 1; ///< Incorrect length indicator
+  uint8_t end_of_medium : 1;
+  uint8_t filemark      : 1;
 
   uint32_t information;
-  uint8_t  additional_sense_len;
+  uint8_t  add_sense_len;
   uint32_t command_specific_info;
-  uint8_t additional_sense_code;
-  uint8_t additional_sense_qualifier;
-  uint8_t field_replaceable_unit_code;
+  uint8_t  add_sense_code;
+  uint8_t  add_sense_qualifier;
+  uint8_t  field_replaceable_unit_code;
 
-  uint8_t sense_key_specific[3]; ///< sense key specific valid bit is bit 7 of key[0], aka MSB in Big Endian layout
+  uint8_t  sense_key_specific[3]; ///< sense key specific valid bit is bit 7 of key[0], aka MSB in Big Endian layout
 
 } scsi_sense_fixed_data_t;