diff --git a/src/Util/CallableArgumentsExtractor.php b/src/Util/CallableArgumentsExtractor.php
index c301f71b3c9..da448a43818 100644
--- a/src/Util/CallableArgumentsExtractor.php
+++ b/src/Util/CallableArgumentsExtractor.php
@@ -176,14 +176,9 @@ private function normalizeName(string $name): string
         return strtolower(str_replace('_', '', $name));
     }
 
-    // logic from Symfony\Component\String\AbstractUnicodeString::snake()
-    private function toSnakeCase(string $str): string
+    private function toSnakeCase(string $name): string
     {
-        $camel = str_replace(' ', '', preg_replace_callback('/\b.(?!\p{Lu})/u', static function ($m) use (&$i) {
-            return 1 === ++$i ? ('İ' === $m[0] ? 'i̇' : mb_strtolower($m[0], 'UTF-8')) : mb_convert_case($m[0], \MB_CASE_TITLE, 'UTF-8');
-        }, preg_replace('/[^\pL0-9]++/u', ' ', $str)));
-
-        return mb_strtolower(preg_replace(['/(\p{Lu}+)(\p{Lu}\p{Ll})/u', '/([\p{Ll}0-9])(\p{Lu})/u'], '\1_\2', $camel), 'UTF-8');
+        return strtolower(preg_replace(['/([A-Z]+)([A-Z][a-z])/', '/([a-z0-9])([A-Z])/'], '\1_\2', $name));
     }
 
     private function getCallableParameters(): array