diff --git a/ssl/internal.h b/ssl/internal.h
index dde605b..61038b7 100644
--- a/ssl/internal.h
+++ b/ssl/internal.h
@@ -155,7 +155,7 @@
 #include <winsock2.h>
 #pragma warning(pop)
 #else
-#include <sys/types.h>
+#include <sys/time.h>
 #endif