diff --git a/flake.nix b/flake.nix
index e3b3532f..879f5a00 100644
--- a/flake.nix
+++ b/flake.nix
@@ -215,6 +215,11 @@
         };
         services.openssh.enable = lib.mkDefault true;
 
+        # We're setting Guix service package with the flake-provided package.
+        # This is to prevent problems setting with overlays as much as I like
+        # using them.
+        services.guix.package = inputs.guix-overlay.packages.${config.nixpkgs.system}.guix;
+
         # It's following the 'nixpkgs' flake input which should be in unstable
         # branches. Not to mention, most of the system configurations should
         # have this attribute set explicitly by default.
diff --git a/hosts/ni/default.nix b/hosts/ni/default.nix
index e14f9d2e..6de59c14 100644
--- a/hosts/ni/default.nix
+++ b/hosts/ni/default.nix
@@ -142,10 +142,7 @@
 
   # Installing Guix within NixOS. Now that's some OTP rarepair material right
   # there.
-  services.guix = {
-    enable = true;
-    package = pkgs.guix;
-  };
+  services.guix.enable = true;
 
   # Set your time zone.
   time.timeZone = "Asia/Manila";