diff --git a/doc/source/user/aio/quickstart.rst b/doc/source/user/aio/quickstart.rst
index 5cf4ae251e..ff2af44b01 100644
--- a/doc/source/user/aio/quickstart.rst
+++ b/doc/source/user/aio/quickstart.rst
@@ -63,6 +63,7 @@ system packages are upgraded and then reboot into the new kernel:
 .. code-block:: shell-session
 
    ## Ubuntu
+   # apt-get update
    # apt-get dist-upgrade
    # reboot