diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index fa28717e2f..a9e653226f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -2733,7 +2733,7 @@ include_dir 'conf.d'
        <table id="synchronous-commit-matrix">
         <title>synchronous_commit Modes</title>
         <tgroup cols="5">
-         <colspec colname="col1" colwidth="1.1*"/>
+         <colspec colname="col1" colwidth="1.5*"/>
          <colspec colname="col2" colwidth="1*"/>
          <colspec colname="col3" colwidth="1*"/>
          <colspec colname="col4" colwidth="1*"/>