diff --git a/user/environments/nixos/home.nix b/user/environments/nixos/home.nix
index 5414e6f..f31706a 100644
--- a/user/environments/nixos/home.nix
+++ b/user/environments/nixos/home.nix
@@ -12,5 +12,8 @@
     ../../modules/zsh.nix
   ];
 
+  # Let Home Manager install and manage itself.
+  programs.home-manager.enable = true;
+
   home.stateVersion = "21.05";
 }