diff --git a/docs/make.md b/docs/make.md
index 8c123cf0..624885a2 100644
--- a/docs/make.md
+++ b/docs/make.md
@@ -269,7 +269,7 @@ a.md: b.md c.md
 
 #### `$+`
 
-`$^` 指代所有的前置条件，不会去除重复项
+`$+` 指代所有的前置条件，不会去除重复项
 
 ```makefile
 a.md: b.md c.md c.md