diff --git a/doc/xml/release.xml b/doc/xml/release.xml
index e7b498238..4d6e4111b 100644
--- a/doc/xml/release.xml
+++ b/doc/xml/release.xml
@@ -100,9 +100,10 @@
                     <release-item>
                         <release-item-contributor-list>
                             <release-item-ideator id="parkinson.janice"/>
+                            <release-item-ideator id="barber.chris"/>
                         </release-item-contributor-list>
 
-                        <p>Fixed an issue where <id>keep-alives</id> could be starved out by lots of small files during multi-threaded operation and were completely absent during single-threaded operation when resuming from a previous incomplete backup.</p>
+                        <p>Fixed an issue where <id>keep-alives</id> could be starved out by lots of small files during multi-threaded operation and were completely absent during single/multi-threaded operation when resuming from a previous incomplete backup and checksumming during a delta restore.</p>
                     </release-item>
 
                     <release-item>
diff --git a/lib/pgBackRest/Protocol/ThreadGroup.pm b/lib/pgBackRest/Protocol/ThreadGroup.pm
index e158c8db0..df8f82bf6 100644
--- a/lib/pgBackRest/Protocol/ThreadGroup.pm
+++ b/lib/pgBackRest/Protocol/ThreadGroup.pm
@@ -136,6 +136,9 @@ sub threadGroupThread
                 }
             }
 
+            # Keep the protocol layer from timing out while checksumming
+            protocolGet()->keepAlive();
+
             # Even numbered threads move up when they have finished a queue, odd numbered threads move down
             $iQueueIdx += $iDirection;
 
diff --git a/lib/pgBackRest/Restore.pm b/lib/pgBackRest/Restore.pm
index 251f02fd7..f781bdf2d 100644
--- a/lib/pgBackRest/Restore.pm
+++ b/lib/pgBackRest/Restore.pm
@@ -1310,6 +1310,9 @@ sub process
                 $lSizeCurrent = restoreFile($oRestoreHash{$strQueueKey}{$strFileKey}, $lCopyTimeBegin, optionGet(OPTION_DELTA),
                                             optionGet(OPTION_FORCE), $self->{strBackupSet}, $bSourceCompression, $strCurrentUser,
                                             $strCurrentGroup, $self->{oFile}, $lSizeTotal, $lSizeCurrent);
+
+                # Keep the protocol layer from timing out while checksumming
+                protocolGet()->keepAlive();
             }
         }
     }