diff --git a/pkgs/tools/security/afl/default.nix b/pkgs/tools/security/afl/default.nix
index 4c3dfe4d07cc..5b96e513fd49 100644
--- a/pkgs/tools/security/afl/default.nix
+++ b/pkgs/tools/security/afl/default.nix
@@ -1,5 +1,6 @@
 { stdenv, fetchurl, bash, callPackage, makeWrapper
-, clang, llvm, which, libcgroup }:
+, clang, llvm, which, libcgroup
+}:
 
 let
   afl-qemu = callPackage ./qemu.nix {};
@@ -7,6 +8,7 @@ let
     else if stdenv.system == "i686-linux" then "qemu-i386"
     else throw "afl: no support for ${stdenv.system}!";
 in
+
 stdenv.mkDerivation rec {
   name    = "afl-${version}";
   version = "2.48b";
@@ -23,7 +25,7 @@ stdenv.mkDerivation rec {
   buildPhase   = ''
     make PREFIX=$out
     cd llvm_mode
-    make PREFIX=$out CC=${clang}/bin/clang CXX=${clang}/bin/clang++
+    make PREFIX=$out
     cd ..
   '';
   installPhase = ''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1aa06ccfa116..848850b2f4d0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -396,7 +396,9 @@ with pkgs;
 
   afio = callPackage ../tools/archivers/afio { };
 
-  afl = callPackage ../tools/security/afl { };
+  afl = callPackage ../tools/security/afl {
+    stdenv = clangStdenv;
+  };
 
   afpfs-ng = callPackage ../tools/filesystems/afpfs-ng/default.nix { };