diff --git a/doc/src/sgml/libpq.sgml b/doc/src/sgml/libpq.sgml
index daf2233124..441cc0da3a 100644
--- a/doc/src/sgml/libpq.sgml
+++ b/doc/src/sgml/libpq.sgml
@@ -6535,7 +6535,7 @@ void PQtrace(PGconn *conn, FILE *stream);
    </varlistentry>
 
    <varlistentry id="libpq-PQsetTraceFlags">
-    <term><function>PQsetTraceFlags</function><indexterm><primary>PQtraceSetFlags</primary></indexterm></term>
+    <term><function>PQsetTraceFlags</function><indexterm><primary>PQsetTraceFlags</primary></indexterm></term>
 
     <listitem>
      <para>