diff --git a/src/schema_formats/XML/GMP.xml.in b/src/schema_formats/XML/GMP.xml.in
index 7bf8c896c..9f6e3732f 100644
--- a/src/schema_formats/XML/GMP.xml.in
+++ b/src/schema_formats/XML/GMP.xml.in
@@ -13318,6 +13318,8 @@ END:VCALENDAR
       <attrib>
         <name>result</name>
         <type>boolean</type>
+        <summary>Whether to include the associated result</summary>
+        <description>Requires "details" to be true.</description>
       </attrib>
     </pattern>
     <response>
@@ -14240,6 +14242,8 @@ END:VCALENDAR
       <attrib>
         <name>result</name>
         <type>boolean</type>
+        <summary>Whether to include the associated result</summary>
+        <description>Requires "details" to be true.</description>
       </attrib>
     </pattern>
     <response>