diff --git a/en/assets/custom.js b/en/assets/custom1.js
similarity index 100%
rename from en/assets/custom.js
rename to en/assets/custom1.js
diff --git a/en/book.toml b/en/book.toml
index 43b5e70..4d4bab2 100644
--- a/en/book.toml
+++ b/en/book.toml
@@ -13,8 +13,8 @@ enable = true
 level = 1
 
 [output.html]
-additional-css = ["theme/style.css"]
-additional-js = ["assets/custom.js"]
+additional-css = ["theme/style1.css"]
+additional-js = ["assets/custom1.js"]
 git-repository-url = "https://github.com/sunface/rust-by-practice"
 edit-url-template = "https://github.com/sunface/rust-by-practice/edit/master/en/{path}"
 
diff --git a/en/theme/style.css b/en/theme/style1.css
similarity index 100%
rename from en/theme/style.css
rename to en/theme/style1.css
diff --git a/zh-CN/assets/custom.js b/zh-CN/assets/custom1.js
similarity index 100%
rename from zh-CN/assets/custom.js
rename to zh-CN/assets/custom1.js
diff --git a/zh-CN/book.toml b/zh-CN/book.toml
index df59d8e..f65c86c 100644
--- a/zh-CN/book.toml
+++ b/zh-CN/book.toml
@@ -13,8 +13,8 @@ enable = true
 level = 1
 
 [output.html]
-additional-css = ["theme/style.css"]
-additional-js = ["assets/custom.js"]
+additional-css = ["theme/style1.css"]
+additional-js = ["assets/custom1.js"]
 git-repository-url = "https://github.com/sunface/rust-by-practice"
 edit-url-template = "https://github.com/sunface/rust-by-practice/edit/master/zh-CN/{path}"
 
diff --git a/zh-CN/theme/style.css b/zh-CN/theme/style1.css
similarity index 100%
rename from zh-CN/theme/style.css
rename to zh-CN/theme/style1.css