diff --git a/core/src/Support/Formatter/SqlFormatter.php b/core/src/Support/Formatter/SqlFormatter.php
index e17c2bfdb5..3f6cb2cb57 100644
--- a/core/src/Support/Formatter/SqlFormatter.php
+++ b/core/src/Support/Formatter/SqlFormatter.php
@@ -1693,7 +1693,7 @@ private static function is_cli()
      * @param \PDO $pdo
      * @return string
      */
-    public static function prepare($sql, array $bindings = [], PDO $pdo = null)
+    public static function prepare($sql, array $bindings = [], PDO|string $pdo = null)
     {
         // insert new lines
         $sql = " $sql ";