diff --git a/ROMImages/Commodore64/readme.txt b/ROMImages/Commodore64/readme.txt
new file mode 100644
index 000000000..420b1557b
--- /dev/null
+++ b/ROMImages/Commodore64/readme.txt
@@ -0,0 +1,7 @@
+ROM files would ordinarily go here; the copyright status of these is uncertain so they have not been included in this repository.
+
+Expected files:
+
+kernal.901227-02.bin; the Commodore 64 kernel.
+
+NB: this file is used only for a particular set of unit tests. This is not currently a Commodore 64 emulator.