diff --git a/src/ui.c b/src/ui.c
index 21c4fb1..605b495 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -12,6 +12,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
+#include <time.h>
+#if defined(_MSC_VER)
+#define localtime_r(T,Tm) (localtime_s(Tm,T) NULL:Tm)
+#endif
 
 const char *dbName = "db.csv";