diff --git a/pkgs/os-specific/darwin/xcode/default.nix b/pkgs/os-specific/darwin/xcode/default.nix
index 9eb6e413c5fb..0984b319ddbd 100644
--- a/pkgs/os-specific/darwin/xcode/default.nix
+++ b/pkgs/os-specific/darwin/xcode/default.nix
@@ -135,6 +135,7 @@ lib.makeExtensible (self: {
   xcode_26_5_Apple_silicon = requireXcode "26.5_Apple_silicon" "sha256-lavdscO0z4Tyf22vV8QMooOt5yYFwnTi1oe3yA+wTdA=";
   xcode_26_6 = requireXcode "26.6_Universal" "sha256-D2xuCXVhTLJLScQ1sxaVH8nANfgkm7/+9iYdi7/FCLI=";
   xcode_26_6_Apple_silicon = requireXcode "26.6_Apple_silicon" "sha256-UOtZRrSPNhwCLGgpNJTPrdOrVKq+7UHnUJjlxakZmOA=";
+  xcode_27 = requireXcode "27" "sha256-k0YuMjPbP5Adnnx6KhQXGRi8kRLPpXJN+EUxpqYHwOE=";
   xcode =
     self."xcode_${
       lib.replaceStrings [ "." ] [ "_" ] (
diff --git a/pkgs/top-level/darwin-packages.nix b/pkgs/top-level/darwin-packages.nix
index 6d6a5988c224..587563efc5a9 100644
--- a/pkgs/top-level/darwin-packages.nix
+++ b/pkgs/top-level/darwin-packages.nix
@@ -142,6 +142,7 @@ makeScopeWithSplicing' {
         xcode_26_5_Apple_silicon
         xcode_26_6
         xcode_26_6_Apple_silicon
+        xcode_27
         xcode
         requireXcode
         ;