diff --git a/pkgs/build-support/kernel/make-initrd.nix b/pkgs/build-support/kernel/make-initrd.nix
index 9c27a142f4b6..5f8d1eee8ce4 100644
--- a/pkgs/build-support/kernel/make-initrd.nix
+++ b/pkgs/build-support/kernel/make-initrd.nix
@@ -56,7 +56,7 @@ in
 , prepend ? []
 
 # Whether to wrap the initramfs in a u-boot image.
-, makeUInitrd ? stdenvNoCC.hostPlatform.linux-kernel.target == "uImage"
+, makeUInitrd ? stdenvNoCC.hostPlatform.linux-kernel.target or "dummy" == "uImage"
 
 # If generating a u-boot image, the architecture to use. The default
 # guess may not align with u-boot's nomenclature correctly, so it can
@@ -75,11 +75,9 @@ let
   toValidStoreName = x: with builtins;
     lib.concatStringsSep "-" (filter (x: !(isList x)) (split "[^a-zA-Z0-9_=.?-]+" x));
 
-in stdenvNoCC.mkDerivation rec {
+in stdenvNoCC.mkDerivation (rec {
   inherit name makeUInitrd extension uInitrdArch prepend;
 
-  ${if makeUInitrd then "uInitrdCompression" else null} = uInitrdCompression;
-
   builder = ./make-initrd.sh;
 
   nativeBuildInputs = [ perl libarchive ]
@@ -110,4 +108,6 @@ in stdenvNoCC.mkDerivation rec {
       contents
       (lib.range 0 (lib.length contents - 1));
   pathsFromGraph = ./paths-from-graph.pl;
-}
+} // lib.optionalAttrs makeUInitrd {
+  uInitrdCompression = uInitrdCompression;
+})
diff --git a/pkgs/test/stdenv/default.nix b/pkgs/test/stdenv/default.nix
index e06759fa28bd..00f1ce90ef3a 100644
--- a/pkgs/test/stdenv/default.nix
+++ b/pkgs/test/stdenv/default.nix
@@ -99,6 +99,9 @@ let
 in
 
 {
+  # Disable on Darwin due to assumptions with __bootPackages
+  __attrsFailEvaluation = stdenv.isDarwin;
+
   # tests for hooks in `stdenv.defaultNativeBuildInputs`
   hooks = lib.recurseIntoAttrs (import ./hooks.nix { stdenv = bootStdenv; pkgs = earlyPkgs; inherit lib; });
 
diff --git a/pkgs/top-level/release-attrpaths-superset.nix b/pkgs/top-level/release-attrpaths-superset.nix
index a80b40d36060..489c378abf04 100644
--- a/pkgs/top-level/release-attrpaths-superset.nix
+++ b/pkgs/top-level/release-attrpaths-superset.nix
@@ -52,6 +52,7 @@ let
     pkgsMusl = true;
     pkgsStatic = true;
     pkgsCross = true;
+    pkgsx86_64Darwin = true;
     pkgsi686Linux = true;
     pkgsLinux = true;
     pkgsExtraHardening = true;
@@ -70,9 +71,11 @@ let
     override = true;
     __functor = true;
     __functionArgs = true;
+    __splicedPackages = true;
     newScope = true;
     scope = true;
     pkgs = true;
+    test-pkgs = true;
 
     buildHaskellPackages = true;
     buildPackages = true;