diff --git a/README.md b/README.md
index aaa824f7..722ed715 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@
 - bytecode interpreter (based on Stack VM technology)
 - direct threaded VM
 - Internal representation by Nan-Boxing
+- conservative call/cc implementation (users can freely interleave native stack with VM stack)
 - exact GC (simple mark and sweep strategy)
 - advanced REPL support (multi-line input, etc)
 - tiny & portable library (all functions will be in `libpicrin.so`)