diff --git a/examples/ch1.1-1/main.go b/examples/ch1-01-genesis/1-hello/main.go
similarity index 55%
rename from examples/ch1.1-1/main.go
rename to examples/ch1-01-genesis/1-hello/main.go
index fc4cdf9..2bc9e2c 100644
--- a/examples/ch1.1-1/main.go
+++ b/examples/ch1-01-genesis/1-hello/main.go
@@ -1,4 +1,4 @@
-// go run chai2010.cn/gobook/examples/ch1.1-1
+// go run chai2010.cn/gobook/examples/ch1-01-genesis/1-hello
 
 package main