diff --git a/flake.nix b/flake.nix
index 6ce9a14..86ab5f4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -92,6 +92,9 @@
                 inputs.agenix.packages.${system}.agenix
               ];
             };
+            tools = pkgs.mkShell {
+              packages = [ pkgs.gucharmap ];
+            };
           };
         })
     // {