diff --git a/README.md b/README.md
index e533b69e..e5a9f1f4 100644
--- a/README.md
+++ b/README.md
@@ -93,3 +93,5 @@ This open source code is maintained by Arduino with the help of the community. W
 
 This code is licensed under the terms of the GNU LGPL 2.1. If you have questions about licensing please contact us at [license@arduino.cc](mailto:license@arduino.cc).
 
+## Warning
+This is a fork of my(toaha63)s to save Arduino from Capitalist Qualcomm, who can kill Arduino. If Qualcomm kills Arduino like OracleJDK, you can see original implementation from here.