diff --git a/hardkernel/odroid-m1/petitboot/default.nix b/hardkernel/odroid-m1/petitboot/default.nix
index 38b2f9e..ab37b1f 100644
--- a/hardkernel/odroid-m1/petitboot/default.nix
+++ b/hardkernel/odroid-m1/petitboot/default.nix
@@ -69,7 +69,7 @@ in
     (lib.mkIf (config.boot.loader.petitboot.enable && options ? sdImage) {
       sdImage.populateRootCommands = lib.mkForce ''
         ${sdImageInstaller} ${args} -c ${config.system.build.toplevel} -d ./files/kboot.conf
-      ''
+      '';
     })
   ];
 }