diff --git a/pkgs/by-name/pa/pamixer/package.nix b/pkgs/by-name/pa/pamixer/package.nix
index cab4a6e0d8af..f629e7d5cd35 100644
--- a/pkgs/by-name/pa/pamixer/package.nix
+++ b/pkgs/by-name/pa/pamixer/package.nix
@@ -21,6 +21,12 @@ stdenv.mkDerivation rec {
     hash = "sha256-LbRhsW2MiTYWSH6X9Pz9XdJdH9Na0QCO8CFmlzZmDjQ=";
   };
 
+  postPatch = ''
+    # icu76 headers (included via cxxopts) require c++17 features
+    substituteInPlace meson.build \
+      --replace-fail 'cpp_std=c++11' 'cpp_std=c++17'
+  '';
+
   nativeBuildInputs = [
     pkg-config
     meson