diff --git a/middleware/cors.go b/middleware/cors.go
index 10504359f..7ace2f224 100644
--- a/middleware/cors.go
+++ b/middleware/cors.go
@@ -39,7 +39,7 @@ type (
 		// See https://blog.portswigger.net/2016/10/exploiting-cors-misconfigurations-for.html
 		//
 		// Optional.
-		AllowOriginFunc func(origin string) (bool, error) `yaml:"allow_origin_func"`
+		AllowOriginFunc func(origin string) (bool, error) `yaml:"-"`
 
 		// AllowMethods determines the value of the Access-Control-Allow-Methods
 		// response header.  This header specified the list of methods allowed when
diff --git a/middleware/rewrite.go b/middleware/rewrite.go
index e5b0a6b56..2090eac04 100644
--- a/middleware/rewrite.go
+++ b/middleware/rewrite.go
@@ -27,7 +27,7 @@ type (
 		// Example:
 		// "^/old/[0.9]+/":     "/new",
 		// "^/api/.+?/(.*)":     "/v2/$1",
-		RegexRules map[*regexp.Regexp]string `yaml:"regex_rules"`
+		RegexRules map[*regexp.Regexp]string `yaml:"-"`
 	}
 )