diff --git a/pkgs/by-name/ap/apt-cacher-ng/package.nix b/pkgs/by-name/ap/apt-cacher-ng/package.nix
index 95a1bdf69359..4724136ea8dd 100644
--- a/pkgs/by-name/ap/apt-cacher-ng/package.nix
+++ b/pkgs/by-name/ap/apt-cacher-ng/package.nix
@@ -25,6 +25,10 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-LkiH1ocDljNJkqzNMx4Sy6ht/vhXUy9hC7BjWo4ykA0=";
   };
 
+  postPatch = ''
+    sed -i '1i #include <cstdint>' src/aclogger.h src/ahttpurl.h
+  '';
+
   nativeBuildInputs = [
     cmake
     doxygen