diff --git a/docs/ide/clion.rst b/docs/ide/clion.rst
index aa0a8afa..7a548ee8 100644
--- a/docs/ide/clion.rst
+++ b/docs/ide/clion.rst
@@ -81,7 +81,8 @@ Known issues
 Arduino ``.ino`` files are not supported
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-CLion doesn't support Arduino files (``*.ino`` and ``.pde``) because they are
+CLion uses "CMake" tool for code completion and code linting. As result, it
+doesn't support Arduino files (``*.ino`` and ``.pde``) because they are
 not valid C/C++ based source files:
 
 1. Missing includes such as ``#include <Arduino.h>``