diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index c14f2e379e3..ecd28bf2cd8 100644
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -4489,7 +4489,7 @@
   </table>
 
   <para>
-   Unused column contain zeroes. For example, <structfield>oprleft</structfield>
+   Unused columns contain zeroes. For example, <structfield>oprleft</structfield>
    is zero for a prefix operator.
   </para>
 
diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
index c3379a18ad1..145a7b71f3f 100644
--- a/doc/src/sgml/datatype.sgml
+++ b/doc/src/sgml/datatype.sgml
@@ -2721,7 +2721,7 @@ P <optional> <replaceable>years</>-<replaceable>months</>-<replaceable>days</> <
      weeks'</literal> or <literal>'01:02:03.45'</literal>.  However,
      because interval internally stores only three integer units (months,
      days, microseconds), fractional units must be spilled to smaller
-     units.  Fractional parts of units greater than months is truncated to
+     units.  Fractional parts of units greater than months are truncated to
      be an integer number of months, e.g. <literal>'1.5 years'</literal>
      becomes <literal>'1 year 6 mons'</literal>.  Fractional parts of
      weeks and days are computed to be an integer number of days and