diff --git a/sources/application/UI/Base/Component/Field/Field.php b/sources/application/UI/Base/Component/Field/Field.php
index 9ed7d9bca..d2a4427b8 100644
--- a/sources/application/UI/Base/Component/Field/Field.php
+++ b/sources/application/UI/Base/Component/Field/Field.php
@@ -31,17 +31,17 @@ class Field extends UIBlock
 	/** @var string */
 	protected $sAttLabel;
 	/** @var bool */
-	protected $bIsHidden;
+	protected $bIsHidden = false;
 	/** @var bool */
-	protected $bIsReadOnly;
+	protected $bIsReadOnly = false;
 	/** @var bool */
-	protected $bIsMandatory;
+	protected $bIsMandatory = false;
 	/** @var bool */
-	protected $bMustChange;
+	protected $bMustChange = false;
 	/** @var bool */
-	protected $bMustPrompt;
+	protected $bMustPrompt = false;
 	/** @var bool */
-	protected $bIsSlave;
+	protected $bIsSlave = false;
 	/** @var string */
 	protected $sValueRaw;
 	/** @var string */
diff --git a/sources/application/UI/Base/Component/Field/FieldFactory.php b/sources/application/UI/Base/Component/Field/FieldFactory.php
index e0fb8f9a1..cf7ec3678 100644
--- a/sources/application/UI/Base/Component/Field/FieldFactory.php
+++ b/sources/application/UI/Base/Component/Field/FieldFactory.php
@@ -58,7 +58,7 @@ class FieldFactory
 
 	private static function UpdateFlagsFieldFromParams($oField, $sMethodName, $iParamsFlags, $iConstant): void
 	{
-		$oField->$sMethodName(($iParamsFlags & $iConstant) === $iConstant);
+		$oField->$sMethodName((($iParamsFlags & $iConstant) === $iConstant));
 	}
 
 	public static function MakeFromObject(string $sLabel, AbstractInput $oInput, ?string $sLayout = null)