diff --git a/llvm/utils/gn/secondary/llvm/lib/MCA/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/MCA/BUILD.gn
index 9752ca828d68..d7a632af3afc 100644
--- a/llvm/utils/gn/secondary/llvm/lib/MCA/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/MCA/BUILD.gn
@@ -22,6 +22,7 @@ static_library("MCA") {
     "Stages/EntryStage.cpp",
     "Stages/ExecuteStage.cpp",
     "Stages/InstructionTables.cpp",
+    "Stages/MicroOpQueueStage.cpp",
     "Stages/RetireStage.cpp",
     "Stages/Stage.cpp",
     "Support.cpp",