diff --git a/modules/nixos/programs/gnome-session/default.nix b/modules/nixos/programs/gnome-session/default.nix
index edceb310..4a16485b 100644
--- a/modules/nixos/programs/gnome-session/default.nix
+++ b/modules/nixos/programs/gnome-session/default.nix
@@ -296,7 +296,7 @@ in
 
   config = lib.mkIf (cfg.sessions != { }) {
     # Install all of the desktop session files.
-    services.xserver.displayManager.sessionPackages = sessionPackages;
+    services.displayManager.sessionData = sessionPackages;
     environment.systemPackages = [ cfg.package ] ++ sessionPackages;
 
     # Make sure it is searchable within gnome-session.
diff --git a/modules/nixos/programs/sessiond/default.nix b/modules/nixos/programs/sessiond/default.nix
index ff84c6e0..e2998e9e 100644
--- a/modules/nixos/programs/sessiond/default.nix
+++ b/modules/nixos/programs/sessiond/default.nix
@@ -186,7 +186,7 @@ in
     environment.systemPackages = [ cfg.package ];
 
     # Install all of the desktop session files.
-    services.xserver.displayManager.sessionPackages = sessionPackages;
+    services.displayManager.sessionData = sessionPackages;
 
     # Import those systemd units from sessiond as well.
     systemd.packages = [ cfg.package ];