diff --git a/util/env_posix.cc b/util/env_posix.cc
index 342a2ff..84aabb2 100644
--- a/util/env_posix.cc
+++ b/util/env_posix.cc
@@ -17,6 +17,7 @@
 #include <time.h>
 #include <unistd.h>
 #include <deque>
+#include <limits>
 #include <set>
 #include "leveldb/env.h"
 #include "leveldb/slice.h"