diff --git a/.envrc b/.envrc
index 935a201a245f..7ddb34ddbc86 100644
--- a/.envrc
+++ b/.envrc
@@ -1,7 +1,8 @@
 watch_file shell.nix
+watch_file default.nix
 watch_file flake.lock
 watch_file rust-toolchain.toml
 
 # try to use flakes, if it fails use normal nix (ie. shell.nix)
 use flake || use nix
-eval "$shellHook"
\ No newline at end of file
+eval "$shellHook"