diff --git a/flake.nix b/flake.nix
index 91f1dad..148dd14 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,7 +31,7 @@
           just-formatter
           just-lsp
           gdb
-          gdbgui
+	  rr
           nasm
           nasmfmt
           git