diff --git a/ESP-IDF_Robot/tutorial/docs/source/data.rst b/ESP-IDF_Robot/tutorial/docs/source/data.rst
index 0a1e1bb54..1dea1ad94 100644
--- a/ESP-IDF_Robot/tutorial/docs/source/data.rst
+++ b/ESP-IDF_Robot/tutorial/docs/source/data.rst
@@ -1,5 +1,5 @@
-DATA STRUCT
-===========
+DATA STRUCTS
+============
 
 The struct serves as the data payload for sending control signals from transmitting device to the receiver using ESP-NOW.
 In addition, it may contain additional data such as telemetry, battery status, etc.