diff --git a/src/d3d11/d3d11_context_def.h b/src/d3d11/d3d11_context_def.h
index 2250f927..f3f2d703 100644
--- a/src/d3d11/d3d11_context_def.h
+++ b/src/d3d11/d3d11_context_def.h
@@ -5,6 +5,8 @@
 #include "d3d11_context.h"
 #include "d3d11_texture.h"
 
+#include <algorithm>
+
 namespace dxvk {
   
   struct D3D11DeferredContextMapEntry {
@@ -96,4 +98,4 @@ namespace dxvk {
     
   };
   
-}
\ No newline at end of file
+}