diff --git a/db/column_family.h b/db/column_family.h
index eaf57826b..fa6902fd2 100644
--- a/db/column_family.h
+++ b/db/column_family.h
@@ -11,7 +11,7 @@
 
 #include "rocksdb/options.h"
 
-#include <map>
+#include <unordered_map>
 #include <string>
 #include <vector>