diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 028765272a0..bc85aec4ef9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -2360,7 +2360,7 @@ 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*">