diff --git a/slapos/recipe/request.py b/slapos/recipe/request.py
index 3a0e1632bf83ebf605014bfe7518de48abe2742a..e326810f0306a4dbf0d218df6003d8cd7e8b2047 100644
--- a/slapos/recipe/request.py
+++ b/slapos/recipe/request.py
@@ -179,3 +179,5 @@ class RequestOptional(Recipe):
           'check status of this instance.' % (self.failed, status)
       self.logger.warning(error_message)
     return []
+
+  update = install