diff --git a/nixos/modules/installer/cd-dvd/iso-image.nix b/nixos/modules/installer/cd-dvd/iso-image.nix
index 4fb851651df6..ae34f90b14c9 100644
--- a/nixos/modules/installer/cd-dvd/iso-image.nix
+++ b/nixos/modules/installer/cd-dvd/iso-image.nix
@@ -372,7 +372,7 @@ let
           # to disable this.
           submenu "Disable display-manager" --class quirk-disable-displaymanager {
             ${grubMenuCfg}
-            ${buildMenuAdditionalParamsGrub2 "systemd.mask=display-manager.service"}
+            ${buildMenuAdditionalParamsGrub2 "systemd.mask=display-manager.service plymouth.enable=0"}
           }
 
           # Some laptop and convertibles have the panel installed in an