diff --git a/README b/README
index 1e1431a..c38b7c8 100644
--- a/README
+++ b/README
@@ -2,6 +2,15 @@
 ************* Text written below is for release 1.0.2, *************
 ************* which might not be vaild for this code   *************
 
+For those who follow Git master:
+
+We migrate from ChibiOS/RT to Chopstix.  You need:
+
+    Edit .git/config to remove chibios reference
+    git rm --cached chibios
+
+
+
 Gnuk - An Implementation of USB Cryptographic Token for GnuPG
 
 							  Version 1.0.2
diff --git a/chibios b/chibios
deleted file mode 160000
index 7015a06..0000000
--- a/chibios
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 7015a063a636ddf0dd04ce4fd49af9f1f28b1855