diff --git a/vitruvio-mobile-form.xsd b/vitruvio-mobile-form.xsd
index 0821fb3..96944ab 100644
--- a/vitruvio-mobile-form.xsd
+++ b/vitruvio-mobile-form.xsd
@@ -141,6 +141,7 @@
             <xs:attribute name="shouldDisplayNextTask" type="xs:boolean" />
             <xs:attribute name="shouldDisplayNextTaskWithoutConfirmation" type="xs:boolean" />
             <xs:attribute name="shouldRefreshTasksFromBackendAfterEnd" type="xs:boolean" />
+            <xs:attribute name="preventAttach" type="xs:boolean" />
 		</xs:extension>
 	</xs:complexContent>
 </xs:complexType>