diff --git a/SourceX/DiabloUI/diabloui.cpp b/SourceX/DiabloUI/diabloui.cpp
index 3ed1f7f75..5289ab57b 100644
--- a/SourceX/DiabloUI/diabloui.cpp
+++ b/SourceX/DiabloUI/diabloui.cpp
@@ -3,6 +3,7 @@
 #include "stubs.h"
 #include "utf8.h"
 #include <string>
+#include <algorithm>
 
 #include "DiabloUI/diabloui.h"