diff --git a/demos/device/src/main.c b/demos/device/src/main.c
index 4423262a7..f4a027fb6 100644
--- a/demos/device/src/main.c
+++ b/demos/device/src/main.c
@@ -69,6 +69,7 @@ void os_none_start_scheduler(void)
     tusb_task_runner();
     led_blinking_task(NULL);
 
+    mscd_app_task(NULL);
     keyboardd_app_task(NULL);
     moused_app_task(NULL);
     cdcd_serial_app_task(NULL);
@@ -86,7 +87,7 @@ int main(void)
   //------------- application task init -------------//
   led_blinking_init();
 
-  msc_dev_app_init();
+  mscd_app_init();
   keyboardd_app_init();
   moused_app_init();
   cdcd_serial_app_init();
diff --git a/demos/device/src/mscd_app.c b/demos/device/src/mscd_app.c
index 815e73604..55f0448cd 100644
--- a/demos/device/src/mscd_app.c
+++ b/demos/device/src/mscd_app.c
@@ -149,8 +149,14 @@ msc_csw_status_t tusbd_msc_scsi_cb (uint8_t coreid, uint8_t lun, uint8_t scsi_cm
 //--------------------------------------------------------------------+
 // IMPLEMENTATION
 //--------------------------------------------------------------------+
+OSAL_TASK_FUNCTION( mscd_app_task , p_task_para)
+{ // no need to implement the task yet
+  OSAL_TASK_LOOP_BEGIN
 
-void msc_dev_app_init (void)
+  OSAL_TASK_LOOP_END
+}
+
+void mscd_app_init (void)
 {
 
 }
diff --git a/demos/device/src/mscd_app.h b/demos/device/src/mscd_app.h
index 7fabf697b..885c2b425 100644
--- a/demos/device/src/mscd_app.h
+++ b/demos/device/src/mscd_app.h
@@ -72,15 +72,15 @@ issue at github.com/hathach/tinyusb"
   #define MSCD_APP_RAMDISK
 #endif
 
-void msc_dev_app_init(void);
-OSAL_TASK_FUNCTION( msc_dev_app_task , p_task_para);
+void mscd_app_init(void);
+OSAL_TASK_FUNCTION( mscd_app_task , p_task_para);
 
 extern scsi_sense_fixed_data_t mscd_sense_data;
 
 #else
 
-#define msc_dev_app_init()
-#define msc_dev_app_task(x)
+#define mscd_app_init()
+#define mscd_app_task(x)
 
 #endif