diff --git a/lib/std/atomic.zig b/lib/std/atomic.zig
index 0f25bd448a..6d7a9832df 100644
--- a/lib/std/atomic.zig
+++ b/lib/std/atomic.zig
@@ -459,18 +459,20 @@ pub const cache_line = switch (builtin.cpu.arch) {
     .powerpc64le,
     => 128,
 
+    // https://github.com/llvm/llvm-project/blob/e379094328e49731a606304f7e3559d4f1fa96f9/clang/lib/Basic/Targets/Hexagon.h#L145-L151
+    .hexagon,
+    => if (std.Target.hexagon.featureSetHas(builtin.target.cpu.features, .v73)) 64 else 32,
+
     // - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_arm.go#L7
     // - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mips.go#L7
     // - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mipsle.go#L7
     // - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mips64x.go#L9
     // - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_riscv64.go#L7
-    // - https://github.com/torvalds/linux/blob/3a7e02c040b130b5545e4b115aada7bacd80a2b6/arch/hexagon/include/asm/cache.h#L13
     // - https://github.com/torvalds/linux/blob/3a7e02c040b130b5545e4b115aada7bacd80a2b6/arch/sparc/include/asm/cache.h#L14
     .arm,
     .armeb,
     .thumb,
     .thumbeb,
-    .hexagon,
     .mips,
     .mipsel,
     .mips64,