diff --git a/server/model/backend/s3.go b/server/model/backend/s3.go
index 7d487ef3..00c20a79 100644
--- a/server/model/backend/s3.go
+++ b/server/model/backend/s3.go
@@ -275,7 +275,7 @@ func (s S3Backend) Mv(from string, to string) error {
 	t := s.path(to)
 	client := s3.New(s.createSession(f.bucket))
 
-	if f.path == "" {
+	if f.path == "" || strings.HasSuffix(from, "/") {
 		return NewError("Can't move this", 403)
 	}