diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index f043433e31..080419806f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -5647,10 +5647,7 @@ SELECT * FROM parent WHERE key = 2400;
       <term>
        <varname>parallel_leader_participation</varname> (<type>boolean</type>)
        <indexterm>
-        <primary>
-         <varname>parallel_leader_participation</varname> configuration
-         parameter
-        </primary>
+        <primary><varname>parallel_leader_participation</varname> configuration parameter</primary>
        </indexterm>
       </term>
       <listitem>
diff --git a/doc/src/sgml/pgtrgm.sgml b/doc/src/sgml/pgtrgm.sgml
index 76806302db..ca97c7ce00 100644
--- a/doc/src/sgml/pgtrgm.sgml
+++ b/doc/src/sgml/pgtrgm.sgml
@@ -377,9 +377,7 @@
     <term>
      <varname>pg_trgm.word_similarity_threshold</varname> (<type>real</type>)
      <indexterm>
-      <primary>
-       <varname>pg_trgm.word_similarity_threshold</varname> configuration parameter
-      </primary>
+      <primary><varname>pg_trgm.word_similarity_threshold</varname> configuration parameter</primary>
      </indexterm>
     </term>
     <listitem>
@@ -394,9 +392,7 @@
     <term>
      <varname>pg_trgm.strict_word_similarity_threshold</varname> (<type>real</type>)
      <indexterm>
-      <primary>
-       <varname>pg_trgm.strict_word_similarity_threshold</varname> configuration parameter
-      </primary>
+      <primary><varname>pg_trgm.strict_word_similarity_threshold</varname> configuration parameter</primary>
      </indexterm>
     </term>
     <listitem>