diff --git a/blog/config.toml b/blog/config.toml
index 1f86d6e1..cf631129 100644
--- a/blog/config.toml
+++ b/blog/config.toml
@@ -6,7 +6,7 @@ highlight_theme = "visual-studio-dark"
 generate_rss = true
 
 languages = [
-    { code = "zh" }, # Chinese
+    { code = "zh-CN" }, # Chinese (simplified)
 ]
 
 [extra]
diff --git a/blog/content/second-edition/posts/01-freestanding-rust-binary/index.zh.md b/blog/content/second-edition/posts/01-freestanding-rust-binary/index.zh-CN.md
similarity index 99%
rename from blog/content/second-edition/posts/01-freestanding-rust-binary/index.zh.md
rename to blog/content/second-edition/posts/01-freestanding-rust-binary/index.zh-CN.md
index 18c8101d..423679b7 100644
--- a/blog/content/second-edition/posts/01-freestanding-rust-binary/index.zh.md
+++ b/blog/content/second-edition/posts/01-freestanding-rust-binary/index.zh-CN.md
@@ -1,7 +1,7 @@
 +++
 title = "独立的Rust二进制"
 weight = 1
-path = "zh/freestanding-rust-binary"
+path = "zh-CN/freestanding-rust-binary"
 date = 2018-02-10
 
 +++
diff --git a/blog/content/second-edition/posts/_index.zh.md b/blog/content/second-edition/posts/_index.zh-CN.md
similarity index 100%
rename from blog/content/second-edition/posts/_index.zh.md
rename to blog/content/second-edition/posts/_index.zh-CN.md