diff --git a/README.md b/README.md
index 69355b06..fb91582f 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ go install -v ./...
 The `_demo` directory contains our demos (it start with `_` to prevent the `go` command from compiling it):
 
 * [hello](_demo/hello/hello.go): call C printf to print `Hello world`
-* [concat](_demo/concat/concat.go): call C fprintf with stderr, and Go variable parameter function
+* [concat](_demo/concat/concat.go): call C fprintf with stderr, and Go variadic function
 * [qsort](_demo/qsort/qsort.go): call C function with a callback (eg. qsort)
 * [genints](_demo/genints/genints.go): various forms of closure usage (including C function, recv.method and anonymous function)