diff --git a/system/src/Grav/Common/Utils.php b/system/src/Grav/Common/Utils.php
index c01275423..582fe5e3d 100644
--- a/system/src/Grav/Common/Utils.php
+++ b/system/src/Grav/Common/Utils.php
@@ -1888,7 +1888,7 @@ abstract class Utils
         return $string;
     }
 
-    public function toAscii(String $string): String
+    public static function toAscii(String $string): String
     {
         return strtr(utf8_decode($string),
             utf8_decode(