diff --git a/rsyncsender/sender.go b/rsyncsender/sender.go
index 292b92a..5babaf1 100644
--- a/rsyncsender/sender.go
+++ b/rsyncsender/sender.go
@@ -141,6 +141,7 @@ func (st *sendTransfer) sendFile(fileIndex int32, fl *utils.SenderFile) error {
 	const chunkSize = 32 * 1024
 
 	fi, f, err := st.filesystem.Read(fl)
+	defer f.Close()
 	if err != nil {
 		return err
 	}
diff --git a/utils/fs.go b/utils/fs.go
index f129817..f446f81 100644
--- a/utils/fs.go
+++ b/utils/fs.go
@@ -5,10 +5,15 @@ import (
 	"os"
 )
 
+type ReaderAtCloser interface {
+	io.ReaderAt
+	io.Closer
+}
+
 // File System: need to handle all type of files: regular, folder, symlink, etc
 type FS interface {
 	Put(*ReceiverFile) (int64, error)
 	Skip(*ReceiverFile) bool
 	List(string) ([]os.FileInfo, error)
-	Read(*SenderFile) (os.FileInfo, io.ReaderAt, error)
+	Read(*SenderFile) (os.FileInfo, ReaderAtCloser, error)
 }