diff --git a/src/restic/backend/s3/s3.go b/src/restic/backend/s3/s3.go
index c7b92c80a..d5e537e5a 100644
--- a/src/restic/backend/s3/s3.go
+++ b/src/restic/backend/s3/s3.go
@@ -20,10 +20,12 @@ const connLimit = 40
 
 // s3 is a backend which stores the data on an S3 endpoint.
 type s3 struct {
-	client     *minio.Client
-	connChan   chan struct{}
-	bucketname string
-	prefix     string
+	client       *minio.Client
+	connChan     chan struct{}
+	bucketname   string
+	prefix       string
+	cacheObjName string
+	cacheSize    int64
 }
 
 // Open opens the S3 backend at bucket and region. The bucket is created if it
@@ -139,6 +141,7 @@ func (be *s3) Load(h restic.Handle, length int, offset int64) (io.ReadCloser, er
 	}
 
 	var obj *minio.Object
+	var size int64
 
 	objName := be.s3path(h)
 
@@ -186,20 +189,27 @@ func (be *s3) Load(h restic.Handle, length int, offset int64) (io.ReadCloser, er
 	}()
 
 	// otherwise use a buffer with ReadAt
-	info, err := obj.Stat()
-	if err != nil {
-		_ = obj.Close()
-		return nil, errors.Wrap(err, "obj.Stat")
+	if be.cacheObjName == objName {
+		size = be.cacheSize
+	} else {
+		info, err := obj.Stat()
+		if err != nil {
+			_ = obj.Close()
+			return nil, errors.Wrap(err, "obj.Stat")
+		}
+		size = info.Size
+		be.cacheObjName = objName
+		be.cacheSize = size
 	}
 
-	if offset > info.Size {
+	if offset > size {
 		_ = obj.Close()
 		return nil, errors.New("offset larger than file size")
 	}
 
 	l := int64(length)
-	if offset+l > info.Size {
-		l = info.Size - offset
+	if offset+l > size {
+		l = size - offset
 	}
 
 	buf := make([]byte, l)