diff --git a/flake.nix b/flake.nix
index 00192ac..b5225a0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,6 +18,7 @@
         {
           home-manager.useGlobalPkgs = true;
           home-manager.useUserPackages = true;
+          home-manager.backupFileExtension = "hm-bak";
           home-manager.users.chexit = import ./home.nix;
         }
       ];
diff --git a/home.nix b/home.nix
index 137c29c..6131e25 100644
--- a/home.nix
+++ b/home.nix
@@ -10,7 +10,7 @@
     enableCompletion = true;
     autosuggestion.enable = true;
     syntaxHighlighting.enable = true;
-    initExtra = ''
+    initContent = ''
       source ${pkgs.zsh-powerlevel10k}/share/zsh-powerlevel10k/powerlevel10k.zsh-theme
     '';
   };