diff --git a/postgresql/doc/src/sgml/ref/create_server.sgml b/postgresql/doc/src/sgml/ref/create_server.sgml
index 8b7b0cc2..962e4a8e 100644
--- a/postgresql/doc/src/sgml/ref/create_server.sgml
+++ b/postgresql/doc/src/sgml/ref/create_server.sgml
@@ -3,7 +3,7 @@ doc/src/sgml/ref/create_server.sgml
 PostgreSQL documentation
 -->
 
-<refentry id="SQL-CREATESERVER">
+<refentry id="sql-createserver">
 <!--==========================orignal english content==========================
  <indexterm zone="sql-createserver">
   <primary>CREATE SERVER</primary>
@@ -40,13 +40,13 @@ ____________________________________________________________________________-->
  <refsynopsisdiv>
 <!--==========================orignal english content==========================
 <synopsis>
-CREATE SERVER [IF NOT EXISTS] <replaceable class="parameter">server_name</replaceable> [ TYPE '<replaceable class="parameter">server_type</replaceable>' ] [ VERSION '<replaceable class="parameter">server_version</replaceable>' ]
+CREATE SERVER [ IF NOT EXISTS ] <replaceable class="parameter">server_name</replaceable> [ TYPE '<replaceable class="parameter">server_type</replaceable>' ] [ VERSION '<replaceable class="parameter">server_version</replaceable>' ]
     FOREIGN DATA WRAPPER <replaceable class="parameter">fdw_name</replaceable>
     [ OPTIONS ( <replaceable class="parameter">option</replaceable> '<replaceable class="parameter">value</replaceable>' [, ... ] ) ]
 </synopsis>
 ____________________________________________________________________________-->
 <synopsis>
-CREATE SERVER [IF NOT EXISTS] <replaceable class="parameter">server_name</replaceable> [ TYPE '<replaceable class="parameter">server_type</replaceable>' ] [ VERSION '<replaceable class="parameter">server_version</replaceable>' ]
+CREATE SERVER [ IF NOT EXISTS ] <replaceable class="parameter">server_name</replaceable> [ TYPE '<replaceable class="parameter">server_type</replaceable>' ] [ VERSION '<replaceable class="parameter">server_version</replaceable>' ]
     FOREIGN DATA WRAPPER <replaceable class="parameter">fdw_name</replaceable>
     [ OPTIONS ( <replaceable class="parameter">option</replaceable> '<replaceable class="parameter">value</replaceable>' [, ... ] ) ]
 </synopsis>