diff --git a/lib/Doctrine/DBAL/Types/DecimalType.php b/lib/Doctrine/DBAL/Types/DecimalType.php
index fbf53f3880a..f75d3db2c68 100644
--- a/lib/Doctrine/DBAL/Types/DecimalType.php
+++ b/lib/Doctrine/DBAL/Types/DecimalType.php
@@ -34,6 +34,8 @@ public function getSQLDeclaration(array $column, AbstractPlatform $platform)
      */
     public function convertToPHPValue($value, AbstractPlatform $platform)
     {
+        // Some drivers starting from PHP 8.1 can represent decimals as float
+        // See also: https://github.com/doctrine/dbal/pull/4818
         if (PHP_VERSION_ID >= 80100 && is_float($value)) {
             return (string) $value;
         }