diff --git a/README.md b/README.md
index a4599f18..78d18c65 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 - conservative call/cc implementation (users can freely interleave native stack with VM stack)
 - exact GC (simple mark and sweep, partially reference count is used as well)
 - support full set hygienic macro transformers, including implicit renaming macros
-- R7RS library syntax
+- extended library syntax
 - advanced REPL support (multi-line input, etc)
 - tiny & portable library (all functions will be in `libpicrin.so`)