diff --git a/lib/Support/Unix/Unix.h b/lib/Support/Unix/Unix.h
index b7be3111d43..361f297d364 100644
--- a/lib/Support/Unix/Unix.h
+++ b/lib/Support/Unix/Unix.h
@@ -44,16 +44,10 @@
 #include <assert.h>
 #endif
 
-#ifdef TIME_WITH_SYS_TIME
+#ifdef HAVE_SYS_TIME_H
 # include <sys/time.h>
-# include <time.h>
-#else
-# ifdef HAVE_SYS_TIME_H
-#  include <sys/time.h>
-# else
-#  include <time.h>
-# endif
 #endif
+#include <time.h>
 
 #ifdef HAVE_SYS_WAIT_H
 # include <sys/wait.h>