diff --git a/sources/PropertyType/ValueType/Leaf/ValueTypeBoolean.php b/sources/PropertyType/ValueType/Leaf/ValueTypeBoolean.php
index b363cbb23..8c606882c 100644
--- a/sources/PropertyType/ValueType/Leaf/ValueTypeBoolean.php
+++ b/sources/PropertyType/ValueType/Leaf/ValueTypeBoolean.php
@@ -7,7 +7,9 @@
 
 namespace Combodo\iTop\PropertyType\ValueType\Leaf;
 
+use Combodo\iTop\DesignElement;
 use Combodo\iTop\Forms\Block\Base\CheckboxFormBlock;
+use utils;
 
 /**
  * @since 3.3.0
@@ -18,4 +20,16 @@ class ValueTypeBoolean extends AbstractLeafValueType
 	{
 		return CheckboxFormBlock::class;
 	}
+
+	public function DeserializeFromDOMNode(DesignElement $oDOMNode): mixed
+	{
+		$value = parent::DeserializeFromDOMNode($oDOMNode);
+
+		return utils::IsTrue($value);
+	}
+
+	public function SerializeToDOMNode(?string $sPropertyName, mixed $value, DesignElement $oDOMNode): void
+	{
+		parent::SerializeToDOMNode($sPropertyName, $value ? 'true' : 'false', $oDOMNode);
+	}
 }
diff --git a/sources/PropertyType/ValueType/Leaf/ValueTypeInteger.php b/sources/PropertyType/ValueType/Leaf/ValueTypeInteger.php
index ef60550c6..cedbc412d 100644
--- a/sources/PropertyType/ValueType/Leaf/ValueTypeInteger.php
+++ b/sources/PropertyType/ValueType/Leaf/ValueTypeInteger.php
@@ -7,6 +7,7 @@
 
 namespace Combodo\iTop\PropertyType\ValueType\Leaf;
 
+use Combodo\iTop\DesignElement;
 use Combodo\iTop\Forms\Block\Base\IntegerFormBlock;
 
 /**
@@ -18,4 +19,16 @@ class ValueTypeInteger extends AbstractLeafValueType
 	{
 		return IntegerFormBlock::class;
 	}
+
+	public function DeserializeFromDOMNode(DesignElement $oDOMNode): mixed
+	{
+		$value = parent::DeserializeFromDOMNode($oDOMNode);
+
+		return intval($value);
+	}
+
+	public function SerializeToDOMNode(?string $sPropertyName, mixed $value, DesignElement $oDOMNode): void
+	{
+		parent::SerializeToDOMNode($sPropertyName, "$value", $oDOMNode);
+	}
 }
diff --git a/tests/php-unit-tests/unitary-tests/sources/PropertyType/Serializer/XMLSerializerTest.php b/tests/php-unit-tests/unitary-tests/sources/PropertyType/Serializer/XMLSerializerTest.php
index c047eccbd..783e6be0e 100644
--- a/tests/php-unit-tests/unitary-tests/sources/PropertyType/Serializer/XMLSerializerTest.php
+++ b/tests/php-unit-tests/unitary-tests/sources/PropertyType/Serializer/XMLSerializerTest.php
@@ -283,6 +283,8 @@ XML,
 							'class_property' => 'class_b',
 						],
 					],
+					'boolean_property' => true,
+					'integer_property' => 3,
 				],
 				'sPropertyTypeXML' => <<<XML
 <?xml version="1.0" encoding="UTF-8"?>
@@ -316,6 +318,12 @@ XML,
 					</node>
 				</prototype>
 			</node>
+			<node id="boolean_property" xsi:type="Combodo-ValueType-Boolean">
+				<label>Boolean</label>
+			</node>
+			<node id="integer_property" xsi:type="Combodo-ValueType-Integer">
+				<label>Integer</label>
+			</node>
 		</nodes>
 	</definition>
 </property_type>
@@ -337,6 +345,8 @@ XML,
 			<class_property>class_b</class_property>
 		</item>
 	</items>
+	<boolean_property>true</boolean_property>
+	<integer_property>3</integer_property>
 </root>
 XML,
 			],