diff --git a/include/libc.h b/include/libc.h
index 5fd56b8bfe7da4..fab1532f2271aa 100644
--- a/include/libc.h
+++ b/include/libc.h
@@ -308,7 +308,7 @@ extern	void	flagprint(int);
 
 #ifdef _WIN32
 
-#ifndef _WIN64
+#if !defined(_WIN64) && !defined(__MINGW64_VERSION_MAJOR)
 struct timespec {
 	int tv_sec;
 	long tv_nsec;