doc/news.texi | 7 +++++++
 main.go       | 9 ++++++++-
 usage.go      | 2 +-
 whichdo.go    | 4 ++--

diff --git a/doc/news.texi b/doc/news.texi
index e70123a7c33664912b25eb38c6b27850c06a3d8ca0a98257c3931ccf304bf6a6..aabdf457f02fd4dcc7d95120c741b9769847adc4974db0fad43685d8fe3ce8b0 100644
--- a/doc/news.texi
+++ b/doc/news.texi
@@ -2,6 +2,13 @@ @node News
 @cindex news
 @unnumbered News
 
+@anchor{Release 2_4_0}
+@section Release 2.4.0
+@itemize
+@item
+    Continue regression fixing of @command{redo-whichdo}.
+@end itemize
+
 @anchor{Release 2_3_0}
 @section Release 2.3.0
 @itemize
diff --git a/main.go b/main.go
index 1b6963e047bfa61121826146779b9d9122141295ecc878caf7af33a1720d930c..92ace2981eb6fee2654e89676f093d0c67d51ce762e6a8f03401c070cad3de88 100644
--- a/main.go
+++ b/main.go
@@ -21,9 +21,11 @@ import (
 	"bufio"
 	"bytes"
 	"encoding/hex"
+	"errors"
 	"flag"
 	"fmt"
 	"io"
+	"io/fs"
 	"log"
 	"os"
 	"os/signal"
@@ -392,7 +394,12 @@ 		}
 		var dos []string
 		dos, err = whichdo(tgts[0])
 		if err != nil {
-			break
+			if errors.Is(err, fs.ErrNotExist) {
+				err = nil
+				ok = false
+			} else {
+				break
+			}
 		}
 		for _, do := range dos {
 			fmt.Println(do)
diff --git a/usage.go b/usage.go
index 446ac4153ceae9e298d0ef34b8ee7454a3e7ab5f1a64d40367c0e7cd10ce3b9c..875715c49f6b9fa364537fcb021446ed3537d3f6bbfb5dd3a0a996c92315e1aa 100644
--- a/usage.go
+++ b/usage.go
@@ -24,7 +24,7 @@ 	"os"
 )
 
 const (
-	Version  = "2.3.0"
+	Version  = "2.4.0"
 	Warranty = `Copyright (C) 2020-2023 Sergey Matveev
 
 This program is free software: you can redistribute it and/or modify
diff --git a/whichdo.go b/whichdo.go
index 9770bc5f900063339669ce4390de3ea897cac44936a66b4fef1b8b225a3561c1..8603387fbf47a73e891afd911ad53db6afa7638295a1b94e6d77bcf861800700 100644
--- a/whichdo.go
+++ b/whichdo.go
@@ -1,8 +1,8 @@
 package main
 
 import (
-	"errors"
 	"io"
+	"io/fs"
 	"os"
 	"path"
 )
@@ -51,7 +51,7 @@ 			dos = append(dos, ifchange.tgt.RelTo(Cwd))
 		}
 	}
 	if doFile == "" {
-		err = errors.New("no .do found")
+		err = fs.ErrNotExist
 		return
 	}
 	p := make([]string, 0, upLevels+2)