diff --git a/sample/dlt645_sample.c b/sample/dlt645_sample.c
index b22541e..d6d238c 100644
--- a/sample/dlt645_sample.c
+++ b/sample/dlt645_sample.c
@@ -60,4 +60,4 @@ int main(void)
         dlt645_read_test();
         rt_thread_mdelay(1000);
     }
-}
\ No newline at end of file
+}