diff --git a/src/d3d11/d3d11_options.cpp b/src/d3d11/d3d11_options.cpp
index 3fe671f9..d240714b 100644
--- a/src/d3d11/d3d11_options.cpp
+++ b/src/d3d11/d3d11_options.cpp
@@ -1,3 +1,5 @@
+#include <unordered_map>
+
 #include "d3d11_options.h"
 
 namespace dxvk {