diff --git a/mach/mantra/int/copyright b/mach/mantra/int/copyright
index d33b46399..f5d4159d3 100644
--- a/mach/mantra/int/copyright
+++ b/mach/mantra/int/copyright
@@ -8,6 +8,8 @@
 ! version is made by Freek van Schagen
 !		     Vrije Universiteit
 !		     Amsterdam.
+! Heavily modified by Ceriel Jacobs for better system-call support,
+! floating point, and other miscellaneous fixes
 
 
 !-------------------------------------------------------------------------