--- src/SimpleRandomizer.cc.orig
+++ src/SimpleRandomizer.cc
@@ -41,9 +41,9 @@
 #include <cstring>
 #include <iostream>
 
-#ifdef __APPLE__
+#ifdef HAVE_APPLETLS
 #  include <Security/SecRandom.h>
-#endif // __APPLE__
+#endif // HAVE_APPLETLS
 
 #ifdef HAVE_LIBGNUTLS
 #  include <gnutls/crypto.h>
@@ -106,7 +106,7 @@
     assert(r);
     abort();
   }
-#elif defined(__APPLE__)
+#elif defined(HAVE_APPLETLS)
   auto rv = SecRandomCopyBytes(kSecRandomDefault, len, buf);
   assert(errSecSuccess == rv);
 #elif defined(HAVE_LIBGNUTLS)
@@ -148,7 +148,7 @@
     assert(0);
     abort();
   }
-#endif // !__MINGW32__ && !__APPLE__ && !HAVE_OPENSSL && !HAVE_LIBGNUTLS
+#endif // !__MINGW32__ && !HAVE_APPLETLS && !HAVE_OPENSSL && !HAVE_LIBGNUTLS
 }
 
 } // namespace aria2