diff --git a/pkgs/os-specific/linux/busybox/default.nix b/pkgs/os-specific/linux/busybox/default.nix
index f041d2b5042..087209a9d29 100644
--- a/pkgs/os-specific/linux/busybox/default.nix
+++ b/pkgs/os-specific/linux/busybox/default.nix
@@ -88,10 +88,6 @@ stdenv.mkDerivation rec {
     runHook postConfigure
   '';
 
-  postConfigure = lib.optionalString useMusl ''
-    makeFlagsArray+=("CC=${stdenv.cc.targetPrefix}cc -isystem ${musl.dev}/include -B${musl}/lib -L${musl}/lib")
-  '';
-
   depsBuildBuild = [ buildPackages.stdenv.cc ];
 
   buildInputs = lib.optionals (enableStatic && !useMusl && stdenv.cc.libc ? static) [ stdenv.cc.libc stdenv.cc.libc.static ];