diff --git a/rotatefile/writer.go b/rotatefile/writer.go
index fec9d0a..f065f42 100644
--- a/rotatefile/writer.go
+++ b/rotatefile/writer.go
@@ -317,7 +317,7 @@ func (d *Writer) Clean() (err error) {
 	fileDir, fileName := path.Split(d.cfg.Filepath)
 
 	// find and clean old files
-	err = fsutil.FindInDir(fileDir[:len(fileDir)-2], func(fPath string, ent fs.DirEntry) error {
+	err = fsutil.FindInDir(fileDir[:len(fileDir)-1], func(fPath string, ent fs.DirEntry) error {
 		fi, err := ent.Info()
 		if err != nil {
 			return err
diff --git a/rotatefile/writer_test.go b/rotatefile/writer_test.go
index f3b178b..0aa8594 100644
--- a/rotatefile/writer_test.go
+++ b/rotatefile/writer_test.go
@@ -128,6 +128,9 @@ func TestWriter_Clean(t *testing.T) {
 		c.Compress = true
 		err = wr.Clean()
 		assert.NoErr(t, err)
+
+		files := fsutil.Glob(logfile + ".*")
+		assert.Equal(t, 2, len(files))
 	})
 }