diff --git a/specifications/xquery-40/src/expressions.xml b/specifications/xquery-40/src/expressions.xml
index 834789b4f..d6f937aab 100644
--- a/specifications/xquery-40/src/expressions.xml
+++ b/specifications/xquery-40/src/expressions.xml
@@ -4043,6 +4043,7 @@ types</term> (such as <code>xs:integer</code>) and function types
                <prodrecap ref="FunctionType"/>
                <prodrecap ref="AnyFunctionType"/>
                <prodrecap ref="TypedFunctionType"/>
+               <prodrecap ref="TypedFunctionParam"/>
                <prodrecap id="ChoiceItemType" ref="ChoiceItemType"/>
                <prodrecap ref="MapType"/>
                <prodrecap ref="RecordType"/>