diff --git a/pkgs/os-specific/windows/default.nix b/pkgs/os-specific/windows/default.nix
index e0f7e5b5f79e..086f05147f0d 100644
--- a/pkgs/os-specific/windows/default.nix
+++ b/pkgs/os-specific/windows/default.nix
@@ -3,53 +3,59 @@
   config,
   stdenv,
   buildPackages,
-  pkgs,
+  pkgsHostTarget,
   newScope,
   overrideCC,
   stdenvNoLibc,
-  emptyDirectory,
+  libc,
+  makeScopeWithSplicing',
+  generateSplicesForMkScope,
 }:
 
-lib.makeScope newScope (
-  self:
-  with self;
-  {
-    dlfcn = callPackage ./dlfcn { };
+makeScopeWithSplicing' {
+  otherSplices = generateSplicesForMkScope "windows";
+  f =
+    self:
+    let
+      inherit (self) callPackage;
+    in
+    {
+      dlfcn = callPackage ./dlfcn { };
 
-    mingw_w64 = callPackage ./mingw-w64 {
-      stdenv = stdenvNoLibc;
-    };
+      mingw_w64 = callPackage ./mingw-w64 {
+        stdenv = stdenvNoLibc;
+      };
 
-    # FIXME untested with llvmPackages_16 was using llvmPackages_8
-    crossThreadsStdenv = overrideCC stdenvNoLibc (
-      if stdenv.hostPlatform.useLLVM or false then
-        buildPackages.llvmPackages.clangNoLibcxx
-      else
-        buildPackages.gccWithoutTargetLibc.override (old: {
-          bintools = old.bintools.override {
-            libc = pkgs.pkgsHostTarget.libc;
-            noLibc = pkgs.libc == null;
+      # FIXME untested with llvmPackages_16 was using llvmPackages_8
+      crossThreadsStdenv = overrideCC stdenvNoLibc (
+        if stdenv.hostPlatform.useLLVM or false then
+          buildPackages.llvmPackages.clangNoLibcxx
+        else
+          buildPackages.gccWithoutTargetLibc.override (old: {
+            bintools = old.bintools.override {
+              libc = pkgsHostTarget.libc;
+              noLibc = libc == null;
+              nativeLibc = false;
+            };
+            libc = pkgsHostTarget.libc;
+            noLibc = libc == null;
             nativeLibc = false;
-          };
-          libc = pkgs.pkgsHostTarget.libc;
-          noLibc = pkgs.libc == null;
-          nativeLibc = false;
-        })
-    );
+          })
+      );
 
-    mingw_w64_headers = callPackage ./mingw-w64/headers.nix { };
+      mingw_w64_headers = callPackage ./mingw-w64/headers.nix { };
 
-    mcfgthreads = callPackage ./mcfgthreads { stdenv = crossThreadsStdenv; };
+      mcfgthreads = callPackage ./mcfgthreads { stdenv = self.crossThreadsStdenv; };
 
-    npiperelay = callPackage ./npiperelay { };
+      npiperelay = callPackage ./npiperelay { };
 
-    pthreads = callPackage ./mingw-w64/pthreads.nix { stdenv = crossThreadsStdenv; };
+      pthreads = callPackage ./mingw-w64/pthreads.nix { stdenv = self.crossThreadsStdenv; };
 
-    libgnurx = callPackage ./libgnurx { };
+      libgnurx = callPackage ./libgnurx { };
 
-    sdk = callPackage ./msvcSdk { };
-  }
-  // lib.optionalAttrs config.allowAliases {
-    mingw_w64_pthreads = lib.warn "windows.mingw_w64_pthreads is deprecated, windows.pthreads should be preferred" self.pthreads;
-  }
-)
+      sdk = callPackage ./msvcSdk { };
+    }
+    // lib.optionalAttrs config.allowAliases {
+      mingw_w64_pthreads = lib.warn "windows.mingw_w64_pthreads is deprecated, windows.pthreads should be preferred" self.pthreads;
+    };
+}