diff --git a/doc/src/sgml/ref/cluster.sgml b/doc/src/sgml/ref/cluster.sgml
index 0d9720fd8e..86f5fdc469 100644
--- a/doc/src/sgml/ref/cluster.sgml
+++ b/doc/src/sgml/ref/cluster.sgml
@@ -28,7 +28,6 @@ CLUSTER [VERBOSE]
where option can be one of:
VERBOSE [ boolean ]
-
diff --git a/doc/src/sgml/ref/create_extension.sgml b/doc/src/sgml/ref/create_extension.sgml
index efd7fc6465..ca2b80d669 100644
--- a/doc/src/sgml/ref/create_extension.sgml
+++ b/doc/src/sgml/ref/create_extension.sgml
@@ -223,8 +223,7 @@ CREATE EXTENSION hstore SCHEMA addons;
SET search_path = addons;
CREATE EXTENSION hstore;
-
-
+
diff --git a/doc/src/sgml/ref/create_procedure.sgml b/doc/src/sgml/ref/create_procedure.sgml
index 2cd47d097f..03a14c8684 100644
--- a/doc/src/sgml/ref/create_procedure.sgml
+++ b/doc/src/sgml/ref/create_procedure.sgml
@@ -382,8 +382,7 @@ END;
and call like this:
CALL insert_data(1, 2);
-
-
+