diff --git a/libobs-d3d11/d3d11-subsystem.hpp b/libobs-d3d11/d3d11-subsystem.hpp
index fb0e43ec4..970b3ea10 100644
--- a/libobs-d3d11/d3d11-subsystem.hpp
+++ b/libobs-d3d11/d3d11-subsystem.hpp
@@ -16,6 +16,7 @@
 ******************************************************************************/
 
 #pragma once
+#error "libobs-d3d11 is not compilable in this commit (windowless context)"
 
 #include <util/AlignedNew.hpp>
 #include <util/windows/win-version.h>