diff --git a/flake.nix b/flake.nix
index 2b0f2528..e0415b07 100644
--- a/flake.nix
+++ b/flake.nix
@@ -81,7 +81,6 @@
               nur.overlay
               agenix.overlay
               nvfetcher.overlay
-              nix-dram.overlay
               ./pkgs/default.nix
             ];
           };
diff --git a/profiles/core/default.nix b/profiles/core/default.nix
index 31d765e0..1d3d6c45 100644
--- a/profiles/core/default.nix
+++ b/profiles/core/default.nix
@@ -85,7 +85,8 @@ in
     };
 
     nix = {
-      package = pkgs.nix-dram;
+      # use nix-dram, a patched nix command, see: https://github.com/dramforever/nix-dram
+      package = inputs.nix-dram.packages.${pkgs.system}.nix-dram;
 
       # Improve nix store disk usage
       autoOptimiseStore = true;