diff --git a/model/config.go b/model/config.go
index f4abddd1a6..fd89cde57d 100644
--- a/model/config.go
+++ b/model/config.go
@@ -545,13 +545,7 @@ func (s *ServiceSettings) SetDefaults(isUpdate bool) {
 		s.Forward80To443 = NewBool(false)
 	}
 
-	if isUpdate {
-		// When updating an existing configuration, ensure that defaults are set.
-		if s.TrustedProxyIPHeader == nil {
-			s.TrustedProxyIPHeader = []string{HeaderForwarded, HeaderRealIP}
-		}
-	} else {
-		// When generating a blank configuration, leave the list empty.
+	if s.TrustedProxyIPHeader == nil {
 		s.TrustedProxyIPHeader = []string{}
 	}