diff --git a/ESP-IDF_Robot/tutorial/docs/source/overview.rst b/ESP-IDF_Robot/tutorial/docs/source/overview.rst
index 25db85963..254bec0da 100644
--- a/ESP-IDF_Robot/tutorial/docs/source/overview.rst
+++ b/ESP-IDF_Robot/tutorial/docs/source/overview.rst
@@ -53,6 +53,8 @@ Changing PWM on each channel determines the speed and direction of the RC car.
 Fusion of Software & Hardware
 -----------------------------
 
+The _struct_ for storing motors PWM values.
+
 .. code-block:: c
 
     struct motors_rpm {