diff --git a/flake.nix b/flake.nix
index 119beba..0252c79 100644
--- a/flake.nix
+++ b/flake.nix
@@ -59,7 +59,9 @@
         henttp = henttp;
         default = henttp;
       };
-      devShell = pkgs.mkShell { packages = buildInputs; shellHook = common; };
+      devShells = {
+        default = pkgs.mkShell { packages = buildInputs; shellHook = common; };
+      };
       checks = {
         default = check-all;
       };