diff --git a/src/schema_formats/XML/GMP.xml.in b/src/schema_formats/XML/GMP.xml.in
index 97d4dfa03..dc2fa1136 100644
--- a/src/schema_formats/XML/GMP.xml.in
+++ b/src/schema_formats/XML/GMP.xml.in
@@ -6226,6 +6226,7 @@ END:VCALENDAR
       <o><e>hosts</e></o>
       <o><e>password</e></o>
       <any><e>role</e></any>
+      <o><e>groups</e></o>
       <o><e>sources</e></o>
     </pattern>
     <ele>
@@ -6273,6 +6274,23 @@ END:VCALENDAR
         </attrib>
       </pattern>
     </ele>
+    <ele>
+      <name>groups</name>
+      <summary>Groups the user will be added to</summary>
+      <pattern>
+        <any><e>group</e></any>
+      </pattern>
+      <ele>
+        <name>group</name>
+        <pattern>
+          <attrib>
+            <name>id</name>
+            <type>uuid</type>
+            <required>1</required>
+          </attrib>
+        </pattern>
+      </ele>
+    </ele>
     <ele>
       <name>sources</name>
       <summary>Authentication source for this user (if omitted then 'file')</summary>