diff --git a/docs/uts/operator.md b/docs/uts/operator.md
index 8de05308884d01166fd0d6bd90dc5b981ebaf00b..a4e625cab1398f37df250b0567b869de533a3578 100644
--- a/docs/uts/operator.md
+++ b/docs/uts/operator.md
@@ -88,7 +88,8 @@ let a = 64 | temp
 | 逻辑非(!)    | !condition1            | (逻辑非) |
 
 **注意**
-逻辑运算符操作数的类型必须是Boolean
+
+逻辑运算符操作数的类型必须是 boolean
 
 ## 字符串运算符(String operators)@String-operators