diff --git a/pkgs/development/libraries/pipewire/wireplumber.nix b/pkgs/development/libraries/pipewire/wireplumber.nix
index cde73edf7904..4f738c33a0e4 100644
--- a/pkgs/development/libraries/pipewire/wireplumber.nix
+++ b/pkgs/development/libraries/pipewire/wireplumber.nix
@@ -69,6 +69,7 @@ stdenv.mkDerivation rec {
     "-Dintrospection=${mesonEnableFeature enableGI}"
     "-Dsystemd-system-service=true"
     "-Dsystemd-system-unit-dir=${placeholder "out"}/lib/systemd/system"
+    "-Dsysconfdir=/etc"
   ];
 
   passthru.updateScript = nix-update-script {