diff --git a/llvm/utils/gn/secondary/lldb/tools/lldb-dap/BUILD.gn b/llvm/utils/gn/secondary/lldb/tools/lldb-dap/BUILD.gn
index a7099aa18b0f..a42f781271a2 100644
--- a/llvm/utils/gn/secondary/lldb/tools/lldb-dap/BUILD.gn
+++ b/llvm/utils/gn/secondary/lldb/tools/lldb-dap/BUILD.gn
@@ -44,6 +44,7 @@ static_library("lib") {
     "Handler/InitializeRequestHandler.cpp",
     "Handler/LaunchRequestHandler.cpp",
     "Handler/LocationsRequestHandler.cpp",
+    "Handler/ModuleSymbolsRequestHandler.cpp",
     "Handler/ModulesRequestHandler.cpp",
     "Handler/NextRequestHandler.cpp",
     "Handler/PauseRequestHandler.cpp",