diff --git a/src/utils/os_win32.c b/src/utils/os_win32.c
index 192d75dea..c93be301e 100644
--- a/src/utils/os_win32.c
+++ b/src/utils/os_win32.c
@@ -13,6 +13,7 @@
  */
 
 #include "includes.h"
+#include <time.h>
 #include <winsock2.h>
 #include <wincrypt.h>