diff --git a/lib-src/wakeup.c b/lib-src/wakeup.c
index 07c324d1210..e481bee8324 100644
--- a/lib-src/wakeup.c
+++ b/lib-src/wakeup.c
@@ -1,9 +1,20 @@
 /* Program to produce output at regular intervals.  */
 
+#include "config.h"
+
 #include <stdio.h>
-#include <time.h>
 #include <sys/types.h>
+
+#ifdef TIME_WITH_SYS_TIME
 #include <sys/time.h>
+#include <time.h>
+#else
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+#endif
 
 struct tm *localtime ();