diff --git a/docs/enum.md b/docs/enum.md
index c1d471a..a87414e 100644
--- a/docs/enum.md
+++ b/docs/enum.md
@@ -532,7 +532,7 @@ enum MyEnum {
   B = 'b'
 }
 
-// { a：any, b: any }
+// { a: any, b: any }
 type Foo = { [key in MyEnum]: any };
 ```