diff --git a/SUMMARY.md b/SUMMARY.md
index 23312f6..03c7a51 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -52,5 +52,6 @@
     * [编码风格](book/03-Objects-Everywhere.md#编码风格)
     * [本章小结](book/03-Objects-Everywhere.md#本章小结)
 * [第四章 运算符](book/04-Operators.md)
+* [第五章 控制流](book/05-Control-Flow.md)
 * [词汇表](GLOSSARY.md)
 
diff --git a/book/05-Control Flow.md b/book/05-Control-Flow.md
similarity index 100%
rename from book/05-Control Flow.md
rename to book/05-Control-Flow.md