diff --git a/ci/checks/formatting.nix b/ci/checks/formatting.nix
index 95c83f87..948fd68d 100644
--- a/ci/checks/formatting.nix
+++ b/ci/checks/formatting.nix
@@ -5,6 +5,6 @@
 }:
 
 pkgs.runCommand "formatting-check" { } ''
-  find ${../../.} -name "*.nix" -print0 | xargs -0 ${pkgs.lib.getExe pkgs.nixfmt} --check
+  find ${../../.} -type f -name "*.nix" -exec ${pkgs.lib.getExe pkgs.nixfmt} --check {} +
   touch $out
 ''