diff --git a/llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn
index 961cb0b0bc46..49cbd51de379 100644
--- a/llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn
@@ -32,6 +32,7 @@ static_library("CodeGen") {
     "CalcSpillWeights.cpp",
     "CallingConvLower.cpp",
     "CodeGen.cpp",
+    "CodeGenPassBuilder.cpp",
     "CodeGenPrepare.cpp",
     "CommandFlags.cpp",
     "CriticalAntiDepBreaker.cpp",