diff --git a/Inline.php b/Inline.php
index cb687554..24c802bc 100644
--- a/Inline.php
+++ b/Inline.php
@@ -653,7 +653,7 @@ private static function evaluateScalar(string $scalar, int $flags, array &$refer
             // no break
             case '+' === $scalar[0] || '-' === $scalar[0] || '.' === $scalar[0] || is_numeric($scalar[0]):
                 if (Parser::preg_match('{^[+-]?[0-9][0-9_]*$}', $scalar)) {
-                    $scalar = str_replace('_', '', (string) $scalar);
+                    $scalar = str_replace('_', '', $scalar);
                 }
 
                 switch (true) {