diff --git a/modules/system/boot/loader/grub/grub.nix b/modules/system/boot/loader/grub/grub.nix
index 384865b867b..70cfc87220c 100644
--- a/modules/system/boot/loader/grub/grub.nix
+++ b/modules/system/boot/loader/grub/grub.nix
@@ -18,7 +18,7 @@ let
         version extraConfig extraPerEntryConfig extraEntries
         extraEntriesBeforeNixOS configurationLimit copyKernels timeout
         default devices;
-      path = makeSearchPath "bin" [ pkgs.coreutils pkgs.gnused pkgs.findutils pkgs.gnugrep ];
+      path = makeSearchPath "bin" [ pkgs.coreutils pkgs.gnused pkgs.gnugrep pkgs.findutils pkgs.diffutils ];
     });
 
 in