X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Ftypes.h;h=af5e2455dd1434d3c58cb9312f7d5337e13dde53;hb=08f3aac97c9ee9d9a4cf0a3232ac0bfa4c320896;hp=577f97d70bb902ad1118472eb0971c2f3feab8c1;hpb=5d79af9e0d466572217dc47f5c307f6fd382a646;p=stockfish

diff --git a/src/types.h b/src/types.h
index 577f97d7..af5e2455 100644
--- a/src/types.h
+++ b/src/types.h
@@ -58,7 +58,7 @@ typedef uint64_t Bitboard;
 #endif
 
 // Check for 64 bits for different compilers: Intel, MSVC and gcc
-#if defined(__x86_64) || defined(_WIN64) || (__SIZEOF_INT__ > 4)
+#if defined(__x86_64) || defined(_M_X64) || defined(_WIN64) || (__SIZEOF_INT__ > 4)
 #define IS_64BIT
 #endif