diff --git a/src/libs/ifc/schema/pattern/v0.4.5.xsd b/src/libs/ifc/schema/pattern/v0.4.5.xsd
index 2813487dc..90319cf9f 100644
--- a/src/libs/ifc/schema/pattern/v0.4.5.xsd
+++ b/src/libs/ifc/schema/pattern/v0.4.5.xsd
@@ -348,6 +348,7 @@
                                       <xs:attribute name="type" type="xs:string" use="required"/>
                                       <xs:attribute name="idObject" type="xs:unsignedInt" use="required"/>
                                       <xs:attribute name="reverse" type="xs:unsignedInt"/>
+                                      <xs:attribute name="excluded" type="xs:boolean"/>
                                       <xs:attribute name="before" type="xs:double"/>
                                       <xs:attribute name="after" type="xs:double"/>
                                       <xs:attribute name="angle" type="nodeAngle"/>