diff --git a/free-programming-books-zh.md b/free-programming-books-zh.md
index e4049a82b..58e5947b5 100644
--- a/free-programming-books-zh.md
+++ b/free-programming-books-zh.md
@@ -16,7 +16,7 @@
 * [Ruby](#ruby)
 * [Scala](#scala)
 * [Shell](#shell)
-* [vim](#vim)
+* [Vim](#vim)
 * [Visual Prolog](#visual-prolog)