diff --git a/pkgs/by-name/ce/cemu/package.nix b/pkgs/by-name/ce/cemu/package.nix
index 29a354635a6c..2d462dfa4594 100644
--- a/pkgs/by-name/ce/cemu/package.nix
+++ b/pkgs/by-name/ce/cemu/package.nix
@@ -150,7 +150,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   preFixup =
     let
-      libs = [ vulkan-loader ] ++ cubeb.passthru.backendLibs;
+      libs = [ vulkan-loader ];
     in
     ''
       gappsWrapperArgs+=(
diff --git a/pkgs/by-name/cu/cubeb/package.nix b/pkgs/by-name/cu/cubeb/package.nix
index 88bc7eadd748..9b6c1865c1af 100644
--- a/pkgs/by-name/cu/cubeb/package.nix
+++ b/pkgs/by-name/cu/cubeb/package.nix
@@ -67,8 +67,6 @@ stdenv.mkDerivation {
   ];
 
   passthru = {
-    # For downstream users when lazyLoad is true
-    backendLibs = [ ];
     updateScript = unstableGitUpdater { hardcodeZeroVersion = true; };
   };
 
diff --git a/pkgs/by-name/qc/qcm/package.nix b/pkgs/by-name/qc/qcm/package.nix
index 9b8d9c92caa7..baffb0244316 100644
--- a/pkgs/by-name/qc/qcm/package.nix
+++ b/pkgs/by-name/qc/qcm/package.nix
@@ -40,17 +40,13 @@ stdenv.mkDerivation (finalAttrs: {
     curl
     ffmpeg
     cubeb
-  ] ++ cubeb.passthru.backendLibs;
+  ];
 
   # Correct qml import path
   postInstall = ''
     mv $out/lib/qt6 $out/lib/qt-6
   '';
 
-  qtWrapperArgs = [
-    "--prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath cubeb.passthru.backendLibs}"
-  ];
-
   meta = {
     description = "Unofficial Qt client for netease cloud music";
     homepage = "https://github.com/hypengw/Qcm";