diff --git a/3.2/itop_design.xsd b/3.2/itop_design.xsd
index aa4676c..4181cd8 100644
--- a/3.2/itop_design.xsd
+++ b/3.2/itop_design.xsd
@@ -17,9 +17,10 @@
                                         <xs:element name="parent" type="xs:string" minOccurs="0" />
                                         <xs:element name="php_parent" minOccurs="0">
                                             <xs:complexType>
-                                                <xs:sequence>
-                                                    <xs:element name="name" type="xs:string" />
-                                                </xs:sequence>
+                                                <xs:all>
+                                                    <xs:element name="name" type="xs:string" minOccurs="0" />
+                                                    <xs:element name="file" type="xs:string" minOccurs="0" />
+                                                </xs:all>
                                             </xs:complexType>
                                         </xs:element>
                                         <xs:element name="properties" minOccurs="0">
diff --git a/test/datamodel.must-validate.xml b/test/datamodel.must-validate.xml
index 8aa4142..b8efefb 100644
--- a/test/datamodel.must-validate.xml
+++ b/test/datamodel.must-validate.xml
@@ -19,7 +19,8 @@
         <class id="TestClass1">
             <parent>ParentClass</parent>
             <php_parent>
-                <name>PhpParent</name>
+                <name>namespace\MyPhpClass</name>
+                <file>file_path_in_the_extension/file.php</file>
             </php_parent>
             <properties>
                 <is_link>1</is_link>