diff --git a/tools/llvm-db/llvm-db.cpp b/tools/llvm-db/llvm-db.cpp
index 140b8e4..a46aa08 100644
--- a/tools/llvm-db/llvm-db.cpp
+++ b/tools/llvm-db/llvm-db.cpp
@@ -50,6 +50,7 @@
 // main Driver function
 //
 int main(int argc, char **argv, char * const *envp) {
+  std::cout << "NOTE: llvm-db is known useless right now.\n";
   try {
     cl::ParseCommandLineOptions(argc, argv,
                                 " llvm source-level debugger\n");