diff --git a/pkgs/clan-vm-manager/shell.nix b/pkgs/clan-vm-manager/shell.nix
index 27f542806..16669fd9d 100644
--- a/pkgs/clan-vm-manager/shell.nix
+++ b/pkgs/clan-vm-manager/shell.nix
@@ -5,11 +5,11 @@ mkShell {
     ruff
   ] ++ clan-vm-manager.nativeBuildInputs;
 
+  PYTHONBREAKPOINT = "ipdb.set_trace";
+
   shellHook = ''
     ln -sfT ${clan-cli.nixpkgs} ../clan-cli/clan_cli/nixpkgs
 
-    export PYTHONBREAKPOINT=ipdb.set_trace
-
     # prepend clan-cli for development
     export PYTHONPATH=../clan-cli:$PYTHONPATH
   '';