diff --git a/internal/cache/file.go b/internal/cache/file.go
index 490b2b311..8dafdfc56 100644
--- a/internal/cache/file.go
+++ b/internal/cache/file.go
@@ -59,13 +59,14 @@ func (c *Cache) load(h restic.Handle, length int, offset int64) (io.ReadCloser,
 		return nil, errors.WithStack(err)
 	}
 
-	if fi.Size() <= int64(crypto.CiphertextLength(0)) {
+	size := fi.Size()
+	if size <= int64(crypto.CiphertextLength(0)) {
 		_ = f.Close()
 		_ = c.remove(h)
 		return nil, errors.Errorf("cached file %v is truncated, removing", h)
 	}
 
-	if fi.Size() < offset+int64(length) {
+	if size < offset+int64(length) {
 		_ = f.Close()
 		_ = c.remove(h)
 		return nil, errors.Errorf("cached file %v is too small, removing", h)