diff --git a/pkgs/os-specific/linux/microcode/iucode-tool.nix b/pkgs/os-specific/linux/microcode/iucode-tool.nix
index e38dd83e0dba..900eb47f7067 100644
--- a/pkgs/os-specific/linux/microcode/iucode-tool.nix
+++ b/pkgs/os-specific/linux/microcode/iucode-tool.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitLab, autoreconfHook }:
+{ lib, stdenv, fetchFromGitLab, autoreconfHook, fetchpatch }:
 
 stdenv.mkDerivation rec {
   pname = "iucode-tool";
@@ -11,6 +11,15 @@ stdenv.mkDerivation rec {
     sha256 = "04dlisw87dd3q3hhmkqc5dd58cp22fzx3rzah7pvcyij135yjc3a";
   };
 
+  patches = [
+    # build fix for musl libc, pending upstream review
+    # https://gitlab.com/iucode-tool/iucode-tool/-/merge_requests/4
+    (fetchpatch {
+      url = "https://gitlab.com/iucode-tool/iucode-tool/-/commit/fda4aaa4727601dbe817fac001f234c19420351a.patch";
+      hash = "sha256-BxYrXALpZFyJtFrgU5jFmzd1dIMPmpNgvYArgkwGt/w=";
+    })
+  ];
+
   nativeBuildInputs = [ autoreconfHook ];
 
   enableParallelBuilding = true;