diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index b9b25e03a23..5ae8abff0ce 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -19206,7 +19206,7 @@ SELECT NULLIF(value, '(none)') ...
       <row>
        <entry role="func_table_entry"><para role="func_signature">
         <indexterm>
-         <primary>multirange</primary>
+         <primary>multirange (function)</primary>
         </indexterm>
         <function>multirange</function> ( <type>anyrange</type> )
         <returnvalue>anymultirange</returnvalue>
diff --git a/doc/src/sgml/rangetypes.sgml b/doc/src/sgml/rangetypes.sgml
index 91e353d4fdb..92ea0e83dab 100644
--- a/doc/src/sgml/rangetypes.sgml
+++ b/doc/src/sgml/rangetypes.sgml
@@ -7,6 +7,10 @@
   <primary>range type</primary>
  </indexterm>
 
+ <indexterm>
+  <primary>multirange type</primary>
+ </indexterm>
+
  <para>
   Range types are data types representing a range of values of some
   element type (called the range's <firstterm>subtype</firstterm>).