diff --git a/pkgs/by-name/cl/clang-uml/package.nix b/pkgs/by-name/cl/clang-uml/package.nix
index fd1871133b14..36b22f932f97 100644
--- a/pkgs/by-name/cl/clang-uml/package.nix
+++ b/pkgs/by-name/cl/clang-uml/package.nix
@@ -1,7 +1,7 @@
 {
   lib,
   fetchFromGitHub,
-  stdenv,
+  clangStdenv,
   cmake,
   pkg-config,
   installShellFiles,
@@ -15,7 +15,7 @@
   enableLibcxx ? false,
   debug ? false,
 }:
-stdenv.mkDerivation (finalAttrs: {
+clangStdenv.mkDerivation (finalAttrs: {
   pname = "clang-uml";
   version = "0.6.2";
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index df2ef2e107c3..3bbd0581ee1c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -319,10 +319,6 @@ with pkgs;
 
   chef-cli = callPackage ../tools/misc/chef-cli { };
 
-  clang-uml = callPackage ../by-name/cl/clang-uml/package.nix {
-    stdenv = clangStdenv;
-  };
-
   cope = callPackage ../by-name/co/cope/package.nix {
     perl = perl538;
     perlPackages = perl538Packages;