diff --git a/components/myguiplatform/scalinglayer.cpp b/components/myguiplatform/scalinglayer.cpp
index 19ae108410..ee9de349ed 100644
--- a/components/myguiplatform/scalinglayer.cpp
+++ b/components/myguiplatform/scalinglayer.cpp
@@ -1,6 +1,7 @@
 #include "scalinglayer.hpp"
 
 #include <MyGUI_RenderManager.h>
+#include <algorithm>
 
 namespace osgMyGUI
 {