diff --git a/doc/src/sgml/sources.sgml b/doc/src/sgml/sources.sgml
index 614defaa2f132c7597f22aa0c1ff362a5d609f51..13409a7994a5d018d6267a86cadbb0a9179a7a78 100644
--- a/doc/src/sgml/sources.sgml
+++ b/doc/src/sgml/sources.sgml
@@ -353,6 +353,15 @@ ereport(ERROR,
      includes the current statement already.
     </para>
    </listitem>
+   <listitem>
+    <para>
+     <function>errhidecontext(bool hide_ctx)</function> can be called to
+     specify suppression of the <literal>CONTEXT:</> portion of a message in
+     the postmaster log.  This should only be used for verbose debugging
+     messages where the repeated inclusion of context would bloat the log
+     volume too much.
+    </para>
+   </listitem>
   </itemizedlist>
    </para>
 
diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 458f3aa2b653b8b6f91742ede47253f8b2330bb9..8e006097a64c658f0c0115967dad78e2605695f6 100644
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -1081,7 +1081,7 @@ errhidestmt(bool hide_stmt)
  * errhidecontext --- optionally suppress CONTEXT: field of log entry
  *
  * This should only be used for verbose debugging messages where the repeated
- * inclusion of CONTEXT: bloats the log volume too much.
+ * inclusion of context would bloat the log volume too much.
  */
 int
 errhidecontext(bool hide_ctx)