diff --git a/pkgs/by-name/ni/nixfmt-rfc-style/package.nix b/pkgs/by-name/ni/nixfmt-rfc-style/package.nix
index a11e2d29ff69f..90e6dbf2e25d0 100644
--- a/pkgs/by-name/ni/nixfmt-rfc-style/package.nix
+++ b/pkgs/by-name/ni/nixfmt-rfc-style/package.nix
@@ -4,6 +4,7 @@
   lib,
   runCommand,
   nixfmt-rfc-style,
+  fetchpatch,
 }:
 let
   inherit (haskell.lib.compose) overrideCabal justStaticExecutables;
@@ -13,6 +14,13 @@ let
 
     passthru.updateScript = ./update.sh;
 
+    patches = [
+      (fetchpatch {
+        url = "https://github.com/serokell/nixfmt/commit/ca9c8975ed671112fdfce94f2e9e2ad3de480c9a.patch";
+        hash = "sha256-UOSAYahSKBsqPMVcQJ3H26Eg2xpPAsNOjYMI6g+WTYU=";
+      })
+    ];
+
     maintainers = lib.teams.formatter.members;
 
     # These tests can be run with the following command.