diff --git a/bsd_src/function.c b/bsd_src/function.c
index 86c281b..1f2c3f2 100644
--- a/bsd_src/function.c
+++ b/bsd_src/function.c
@@ -59,11 +59,11 @@
 #include "common_def.h"
 #include "client_def.h"
 #include "c_extern.h"
-#if TIME_WITH_SYS_TIME
+#ifdef TIME_WITH_SYS_TIME
 # include <sys/time.h>
 # include <time.h>
 #else
-# if HAVE_SYS_TIME_H
+# ifdef HAVE_SYS_TIME_H
 #  include <sys/time.h>
 # else
 #  include <time.h>