[gn build] Port c84d8e8f1c40
diff --git a/llvm/utils/gn/secondary/clang/lib/Serialization/BUILD.gn b/llvm/utils/gn/secondary/clang/lib/Serialization/BUILD.gn
index c6a725e..8417418 100644
--- a/llvm/utils/gn/secondary/clang/lib/Serialization/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/lib/Serialization/BUILD.gn
@@ -25,6 +25,7 @@
     "GeneratePCH.cpp",
     "GlobalModuleIndex.cpp",
     "InMemoryModuleCache.cpp",
+    "ModuleCache.cpp",
     "ModuleFile.cpp",
     "ModuleFileExtension.cpp",
     "ModuleManager.cpp",