diff --git a/src/Log.cxx b/src/Log.cxx
index 8684df4..87efad1 100644
--- a/src/Log.cxx
+++ b/src/Log.cxx
@@ -24,6 +24,7 @@
 #include "config.h"
 
 #include <cassert>
+#include <ctime>
 
 #include <stdarg.h>
 #include <stdio.h>