diff --git a/flake.nix b/flake.nix
index 3a2f669..f8f3e38 100644
--- a/flake.nix
+++ b/flake.nix
@@ -34,6 +34,12 @@
 
       devShells = forAllSystems (system: {
         default = nixpkgsFor.${system}.mkShell {
+          buildInputs =
+            with nixpkgsFor.${system};
+            self.packages.${system}.fortify.buildInputs;
+        };
+
+        withPackage = nixpkgsFor.${system}.mkShell {
           buildInputs =
             with nixpkgsFor.${system};
             self.packages.${system}.fortify.buildInputs ++ [ self.packages.${system}.fortify ];