diff --git a/pkgs/tools/system/efivar/default.nix b/pkgs/tools/system/efivar/default.nix
index 09394beb3931..f08a70e2b07a 100644
--- a/pkgs/tools/system/efivar/default.nix
+++ b/pkgs/tools/system/efivar/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPackages, fetchFromGitHub, pkg-config, popt, mandoc }:
+{ lib, stdenv, buildPackages, fetchFromGitHub, fetchpatch, pkg-config, popt, mandoc }:
 
 stdenv.mkDerivation rec {
   pname = "efivar";
@@ -13,6 +13,13 @@ stdenv.mkDerivation rec {
     hash = "sha256-A38BKGMK3Vo+85wzgxmzTjzZXtpcY9OpbZaONWnMYNk=";
   };
 
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/rhboot/efivar/commit/15622b7e5761f3dde3f0e42081380b2b41639a48.patch";
+      sha256 = "sha256-SjZXj0hA2eQu2MfBoNjFPtd2DMYadtL7ZqwjKSf2cmI=";
+    })
+  ];
+
   nativeBuildInputs = [ pkg-config mandoc ];
   buildInputs = [ popt ];
   depsBuildBuild = [ buildPackages.stdenv.cc ];