diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..ed9c104
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,2 @@
+This project is a fork of MAME, please check their license at this link:
+https://github.com/mamedev/mame/raw/master/COPYING
diff --git a/README.md b/README.md
index dc6c8c7..c77ae8c 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,10 @@
 
 Can be built on [Termux](https://termux.dev/).
 
+This repository is a fork of [MAME](https://github.com/mamedev/mame/)
+
+for real contributors to the chdman utility, please visit their repository.
+
 ## Compilation
 
 ### Install dependencies