diff --git a/pkgs/development/compilers/llvm/common/llvm/default.nix b/pkgs/development/compilers/llvm/common/llvm/default.nix
index 222f7fb6e54d..b82840833426 100644
--- a/pkgs/development/compilers/llvm/common/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/common/llvm/default.nix
@@ -304,16 +304,6 @@ stdenv.mkDerivation (
             substituteInPlace unittests/Support/VirtualFileSystemTest.cpp \
               --replace-fail "PhysicalFileSystemWorkingDirFailure" "DISABLED_PhysicalFileSystemWorkingDirFailure"
           ''
-        +
-          # Fails on macOS ≥ 26 due to the changed OS version scheme.
-          #
-          # This was fixed upstream in LLVM 21 with
-          # 88f041f3e05e26617856cc096d2e2864dfaa1c7b, but it’s too
-          # painful to backport all the way.
-          lib.optionalString (lib.versionOlder release_version "21") ''
-            substituteInPlace unittests/TargetParser/Host.cpp \
-              --replace-fail "getMacOSHostVersion" "DISABLED_getMacOSHostVersion"
-          ''
         +
           # This test fails with a `dysmutil` crash; have not yet dug into what's
           # going on here (TODO(@rrbutani)).