diff --git a/docs/building-cmake.md b/docs/building-cmake.md
index 050fb2072..23a89cad1 100644
--- a/docs/building-cmake.md
+++ b/docs/building-cmake.md
@@ -1,3 +1,5 @@
+**NOTE: THIS INSTRUCTION IS STAYED HERE FOR HISTORICAL PURPOSES AND FOR WINDOWS XP USERS WHICH WANTS TO TRY TO COMPILE KEPKA ON WINDOWS XP. IN THAT CASE YOU SHOULD USE PARTS OF THIS DOC RELATED TO PATCHING Qt 5.6 AND IN ADDITIONAL YOU MUST USE XP MSVS TOOLHAINS!**
+
 ## Build instructions for GYP/CMake under Ubuntu 12.04
 
 ### Prepare