diff --git a/llvm/utils/gn/secondary/libcxx/src/BUILD.gn b/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
index a6e9e21eac05..cfd1f5f08b4e 100644
--- a/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
@@ -135,6 +135,7 @@ cxx_sources = [
   "new.cpp",
   "optional.cpp",
   "random.cpp",
+  "random_shuffle.cpp",
   "regex.cpp",
   "shared_mutex.cpp",
   "stdexcept.cpp",