diff --git a/deps/openssl/config/opensslconf.h b/deps/openssl/config/opensslconf.h
index fb4c6c57109879..37e5c4f54ae558 100644
--- a/deps/openssl/config/opensslconf.h
+++ b/deps/openssl/config/opensslconf.h
@@ -221,7 +221,7 @@
 # undef SIXTEEN_BIT
 # undef EIGHT_BIT
 # if defined(_M_X64) || defined(__x86_64__)
-#  if !defined(_WIN32) && !defined(_LP64)
+#  if defined(_WIN64) || defined(_LP64)
 #   define SIXTY_FOUR_BIT_LONG
 #  else
 #   define SIXTY_FOUR_BIT