diff --git a/src/ostream_wrapper.cpp b/src/ostream_wrapper.cpp
index bf9aa6e..7f7adae 100644
--- a/src/ostream_wrapper.cpp
+++ b/src/ostream_wrapper.cpp
@@ -1,4 +1,6 @@
 #include "yaml-cpp/ostream_wrapper.h"
+
+#include <algorithm>
 #include <cstring>
 #include <iostream>