diff --git a/tools/libwasmvm/libwasmvm.nix b/tools/libwasmvm/libwasmvm.nix
index a1f7d7b683..7ebe7d8be4 100644
--- a/tools/libwasmvm/libwasmvm.nix
+++ b/tools/libwasmvm/libwasmvm.nix
@@ -1,5 +1,4 @@
-_:
-{
+_: {
   perSystem =
     {
       pkgs,