diff --git a/doc/src/sgml/amcheck.sgml b/doc/src/sgml/amcheck.sgml
index a2571d33ae..30fcb033e3 100644
--- a/doc/src/sgml/amcheck.sgml
+++ b/doc/src/sgml/amcheck.sgml
@@ -457,14 +457,13 @@ SET client_min_messages = DEBUG1;
    </listitem>
    <listitem>
     <para>
-     File system or storage subsystem faults where checksums happen to
-     simply not be enabled.
+     File system or storage subsystem faults where checksums are
+     not enabled.
     </para>
     <para>
-     Note that <filename>amcheck</filename> examines a page as represented in some
-     shared memory buffer at the time of verification if there is only a
-     shared buffer hit when accessing the block. Consequently,
-     <filename>amcheck</filename> does not necessarily examine data read from the
+     Note that <filename>amcheck</filename> examines a page as represented in a
+     shared memory buffer at the time of verification.  If the page is cached,
+     <filename>amcheck</filename> will not examine data read from the
      file system at the time of verification. Note that when checksums are
      enabled, <filename>amcheck</filename> may raise an error due to a checksum
      failure when a corrupt block is read into a buffer.