diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 386dab08e92..e501f1d45b8 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -8015,7 +8015,7 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
         various purposes.  The cluster name appears in the process title for
         all server processes in this cluster.  Moreover, it is the default
         application name for a standby connection (see <xref
-        linkend="guc-synchronous-standby-names"/>.)
+        linkend="guc-synchronous-standby-names"/>).
        </para>
 
        <para>
diff --git a/doc/src/sgml/libpq.sgml b/doc/src/sgml/libpq.sgml
index b667fca9f67..6ec68226037 100644
--- a/doc/src/sgml/libpq.sgml
+++ b/doc/src/sgml/libpq.sgml
@@ -5058,7 +5058,7 @@ PGresult *PQgetResult(PGconn *conn);
        <literal>PGRES_PIPELINE_SYNC</literal> will be returned.
        The result of the next query after the synchronization point follows
        immediately (that is, no null pointer is returned after
-       the synchronization point.)
+       the synchronization point).
       </para>
 
       <note>
diff --git a/doc/src/sgml/ref/pgbench.sgml b/doc/src/sgml/ref/pgbench.sgml
index 850028557d3..a243bacac8d 100644
--- a/doc/src/sgml/ref/pgbench.sgml
+++ b/doc/src/sgml/ref/pgbench.sgml
@@ -898,7 +898,7 @@ pgbench <optional> <replaceable>options</replaceable> </optional> <replaceable>d
         Print messages about all errors and failures (errors without retrying)
         including which limit for retries was exceeded and how far it was
         exceeded for the serialization/deadlock failures. (Note that in this
-        case the output can be significantly increased.).
+        case the output can be significantly increased.)
         See <xref linkend="failures-and-retries"/> for more information.
        </para>
       </listitem>