diff --git a/ESP-IDF_Robot/tutorial/docs/source/data.rst b/ESP-IDF_Robot/tutorial/docs/source/data.rst
index 090c4597e..48d9b0bc5 100644
--- a/ESP-IDF_Robot/tutorial/docs/source/data.rst
+++ b/ESP-IDF_Robot/tutorial/docs/source/data.rst
@@ -1,2 +1,4 @@
 DATA STRUCT
-===========
\ No newline at end of file
+===========
+
+.. code-block:: c
\ No newline at end of file