diff --git a/include/openssl/target.h b/include/openssl/target.h
index c972e83..4e12652 100644
--- a/include/openssl/target.h
+++ b/include/openssl/target.h
@@ -139,6 +139,9 @@
 #define OPENSSL_MSAN
 #define OPENSSL_ASM_INCOMPATIBLE
 #endif
+#if __has_feature(hwaddress_sanitizer)
+#define OPENSSL_HWASAN
+#endif
 #endif
 
 #if defined(OPENSSL_ASM_INCOMPATIBLE)