diff --git a/test/benchmark.c b/test/benchmark.c
index b3caa9a..e4b0bdd 100644
--- a/test/benchmark.c
+++ b/test/benchmark.c
@@ -130,7 +130,7 @@ timediff_sec (base64_timespec *start, base64_timespec *end)
 
 	return (float)((diff * tb.numer) / tb.denom) / 1e9f;
 }
-#elif defined(_WIN32) && !(defined(__MINGW32__) || defined(__MINGW64__))
+#elif defined(_WIN32) || defined(__MSYS__) || !(defined(__MINGW32__) || defined(__MINGW64__))
 typedef struct timespec base64_timespec;
 static void
 base64_gettime (base64_timespec *o_time)