diff --git a/tests/libtcc_test_mt.c b/tests/libtcc_test_mt.c
index c2324bf7..266870fe 100644
--- a/tests/libtcc_test_mt.c
+++ b/tests/libtcc_test_mt.c
@@ -32,6 +32,8 @@ void sleep_ms(unsigned n)
     Sleep(n);
 }
 #else
+#include <sys/time.h>
+#include <unistd.h>
 #include <pthread.h>
 #define TF_TYPE(func, param) void* func(void *param)
 typedef TF_TYPE(ThreadFunc, x);