diff --git a/flake.nix b/flake.nix
index fe3b04f..abcd22c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,11 +21,14 @@
         let
           pkgs = import nixpkgs { inherit system; };
 
-          toes = pkgs.foot.overrideAttrs {
+          toes = pkgs.foot.overrideAttrs (prev: {
             pname = "toes";
             version = "1.26.1";
             src = ./.;
-          };
+            buildInputs = (prev.buildInputs or [ ]) ++ [
+              pkgs.libsodium
+            ];
+          });
         in
         {
           inherit toes;