diff --git a/default.nix b/default.nix
index 244ee8fc..f5bfcc76 100644
--- a/default.nix
+++ b/default.nix
@@ -330,6 +330,8 @@ let
 
     pkgs.lcov
     pkgs.catch2
+
+    pkgs.btop
   ]
   ++ (if pkgs.stdenv.isLinux then [
     pkgs.gdb