diff --git a/cpp/flake.nix b/cpp/flake.nix
index 156da4e..1bd81bc 100644
--- a/cpp/flake.nix
+++ b/cpp/flake.nix
@@ -18,6 +18,7 @@
           pkg-config
           valgrind
           bind
+          perf
         ];
 
         buildInputs = with pkgs; [