diff --git a/lib/std/zig/system/darwin/macos.zig b/lib/std/zig/system/darwin/macos.zig
index c0a9aa47d7..3201f102b6 100644
--- a/lib/std/zig/system/darwin/macos.zig
+++ b/lib/std/zig/system/darwin/macos.zig
@@ -423,7 +423,7 @@ pub fn detectNativeCpuAndFeatures() ?Target.Cpu {
                 .ARM_IBIZA => &Target.aarch64.cpu.apple_m3, // base
                 .ARM_LOBOS => &Target.aarch64.cpu.apple_m3, // pro
                 .ARM_PALMA => &Target.aarch64.cpu.apple_m3, // max
-                // .ARM_DONAN => &Target.aarch64.cpu.apple_m4, // decl not available until llvm 19
+                .ARM_DONAN => &Target.aarch64.cpu.apple_m4,
             };
 
             return Target.Cpu{