diff --git a/runtime/server/downloads.go b/runtime/server/downloads.go
index c2604fcb6d4..64ecf169fc6 100644
--- a/runtime/server/downloads.go
+++ b/runtime/server/downloads.go
@@ -264,7 +264,7 @@ func (s *Server) downloadHandler(w http.ResponseWriter, req *http.Request) {
 
 func (s *Server) resolveExportLimit(base, override int64) int64 {
 	res := base
-	if override < res {
+	if override > 0 && override < res {
 		res = override
 	}
 	return res