diff --git a/test/llvm_targets.zig b/test/llvm_targets.zig
index 42c5428e06..5c4d8f520c 100644
--- a/test/llvm_targets.zig
+++ b/test/llvm_targets.zig
@@ -329,6 +329,7 @@ const targets = [_]std.Target.Query{
     .{ .cpu_arch = .x86, .os_tag = .rtems, .abi = .none },
     .{ .cpu_arch = .x86, .os_tag = .solaris, .abi = .none },
     .{ .cpu_arch = .x86, .os_tag = .uefi, .abi = .none },
+    .{ .cpu_arch = .x86, .os_tag = .windows, .abi = .cygnus },
     .{ .cpu_arch = .x86, .os_tag = .windows, .abi = .gnu },
     .{ .cpu_arch = .x86, .os_tag = .windows, .abi = .itanium },
     .{ .cpu_arch = .x86, .os_tag = .windows, .abi = .msvc },
@@ -368,6 +369,7 @@ const targets = [_]std.Target.Query{
     .{ .cpu_arch = .x86_64, .os_tag = .uefi, .abi = .none },
     .{ .cpu_arch = .x86_64, .os_tag = .visionos, .abi = .simulator },
     .{ .cpu_arch = .x86_64, .os_tag = .watchos, .abi = .simulator },
+    .{ .cpu_arch = .x86_64, .os_tag = .windows, .abi = .cygnus },
     .{ .cpu_arch = .x86_64, .os_tag = .windows, .abi = .gnu },
     .{ .cpu_arch = .x86_64, .os_tag = .windows, .abi = .itanium },
     .{ .cpu_arch = .x86_64, .os_tag = .windows, .abi = .msvc },