diff --git a/flake.nix b/flake.nix
index 5f26dca66c5d9adc4a5ddc0ba8b9d9b01599de0c..c3c556c53f7d54c3e90756fd140c41462d55f384 100644
--- a/flake.nix
+++ b/flake.nix
@@ -59,8 +59,8 @@
       devShells = hslib.devShells {
         shellHook = ''
           cat >cabal.project.local <<EOF
-          # This file is auto-generated by the flake devShell's shellHook.  Do
-          # not edit this file.  Make changes in flake.nix.
+          -- This file is auto-generated by the flake devShell's shellHook.  Do
+          -- not edit this file.  Make changes in flake.nix.
           packages:
             .
             -- These aren't released on hackage yet so we have to get them