diff --git a/src/distrib/plugins/meshlabfilterXMLspecificationformat.xsd b/src/distrib/plugins/meshlabfilterXMLspecificationformat.xsd
index 73ff4e072..b4693b25b 100644
--- a/src/distrib/plugins/meshlabfilterXMLspecificationformat.xsd
+++ b/src/distrib/plugins/meshlabfilterXMLspecificationformat.xsd
@@ -46,6 +46,7 @@
     <xs:choice>
      <xs:element ref='CHECKBOX_GUI'/>
      <xs:element ref='ABSPERC_GUI'/>
+	 <xs:element ref='EDIT_GUI'/>
     </xs:choice>
    </xs:sequence>
    <xs:attribute name='parType' use='required'>
@@ -73,6 +74,12 @@
   </xs:complexType>
  </xs:element>
  
+ <xs:element name='EDIT_GUI'>
+  <xs:complexType>
+   <xs:attribute name='guiLabel' type='xs:string' use='required'/>
+  </xs:complexType>
+ </xs:element>
+ 
  <xs:element name='ABSPERC_GUI'>
   <xs:complexType>
    <xs:attribute name='guiLabel' type='xs:string' use='required'/>