diff --git a/clang/lib/Headers/CMakeLists.txt b/clang/lib/Headers/CMakeLists.txt
--- a/clang/lib/Headers/CMakeLists.txt
+++ b/clang/lib/Headers/CMakeLists.txt
@@ -378,6 +378,7 @@
                  "cuda-resource-headers"
                  "hexagon-resource-headers"
                  "hip-resource-headers"
+                 "hlsl-resource-headers"
                  "mips-resource-headers"
                  "ppc-resource-headers"
                  "ppc-htm-resource-headers"