diff --git a/components/finsh/finsh.h b/components/finsh/finsh.h
index cf7ee05808d1c9ebaa44f6eaa0faff75246d312f..0b270ddeafcb8a78e9b44f0235e998994da9e3ce 100644
--- a/components/finsh/finsh.h
+++ b/components/finsh/finsh.h
@@ -411,7 +411,6 @@ struct finsh_parser
  *
  * The basic data type in finsh shell
  */
-
 enum finsh_type {
 	finsh_type_unknown = 0, /**< unknown data type */
 	finsh_type_void,		/**< void  			*/
diff --git a/components/finsh/shell.c b/components/finsh/shell.c
index 5489cedf3d8b8d170b8043eb04617561b519ce4e..a9559954e69052586f55533daaab0375c9474914 100644
--- a/components/finsh/shell.c
+++ b/components/finsh/shell.c
@@ -112,7 +112,7 @@ void finsh_set_device(const char* device_name)
     /* check whether it's a same device */
     if (dev == shell->device) return;
     /* open this device and set the new device in finsh shell */
-    if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR) == RT_EOK)
+    if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX) == RT_EOK)
     {
         if (shell->device != RT_NULL)
         {