diff --git a/llvm/utils/gn/secondary/llvm/lib/MC/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/MC/BUILD.gn
index 6d60a1ffbb5cf5..1d69ce570b9b81 100644
--- a/llvm/utils/gn/secondary/llvm/lib/MC/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/MC/BUILD.gn
@@ -27,6 +27,8 @@ static_library("MC") {
     "MCCodeEmitter.cpp",
     "MCCodeView.cpp",
     "MCContext.cpp",
+    "MCDXContainerStreamer.cpp",
+    "MCDXContainerWriter.cpp",
     "MCDwarf.cpp",
     "MCELFObjectTargetWriter.cpp",
     "MCELFStreamer.cpp",
@@ -51,6 +53,7 @@ static_library("MC") {
     "MCSchedule.cpp",
     "MCSection.cpp",
     "MCSectionCOFF.cpp",
+    "MCSectionDXContainer.cpp",
     "MCSectionELF.cpp",
     "MCSectionMachO.cpp",
     "MCSectionWasm.cpp",