diff --git a/README.md b/README.md
index 2bae1fc..824657e 100644
--- a/README.md
+++ b/README.md
@@ -6,4 +6,6 @@ Implements a 6502 emulator, basic I/O and runs the Woz monitor.
 Can aslo run Vince Briel Replica 1 ROM which includes Krusader and Apple 1 Basic. 
 Just convert the binary dump into a C array as done in woz.h
 
+passes the Klaus Test Suite (https://github.com/Klaus2m5/6502_65C02_functional_tests)
+
 Have fun !