diff --git a/doc/source/admin/dhcp-less.rst b/doc/source/admin/dhcp-less.rst
index fe3aa055f9..64093dfa7d 100644
--- a/doc/source/admin/dhcp-less.rst
+++ b/doc/source/admin/dhcp-less.rst
@@ -21,10 +21,8 @@ be configured accordingly.
         debian-minimal -e simple-init
 
 .. warning::
-   The simple-init_ element is found to conflict to NetworkManager, which makes
-   this feature not operational with ramdisks based on CentOS, RHEL and Fedora.
-   The ``debian-minimal`` and ``centos`` elements seem to work correctly. For
-   CentOS, only CentOS 7 based ramdisks are known to work.
+   Ramdisks based on distributions with NetworkManager require Glean_ 1.19.0
+   or newer to work.
 
 .. note::
    If desired, some interfaces can still be configured to use DHCP.